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Question 1
Incorrect
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A 33-year-old woman who gave birth three weeks ago is feeling very fatigued after walking to the park and back. The birth was via a caesarean section and she needed one unit of blood transfusion. She visits her family doctor and denies experiencing any chest pain, heart palpitations, shortness of breath, or further bleeding.
During the examination, there are no indications of ongoing bleeding, and the caesarean section incision is healing properly. The blood test results are as follows:
- Hb 95 g/L Female: (115 - 160)
- Platelets 240 * 109/L (150 - 400)
- WBC 7.0 * 109/L (4.0 - 11.0)
- Ferritin 6 µg/L (15 - 300)
What is the minimum haemoglobin level for this patient to be prescribed iron supplements?Your Answer: <110 g/L
Correct Answer:
Explanation:The appropriate cut-off for determining if iron supplementation is necessary in the postpartum period is <100 g/L. It is important to continue oral iron for three months after normalizing ferritin levels to ensure adequate stores for efficient oxygen delivery to the tissues. Cut-offs of <105 g/L, <110 g/L, and <120 g/L are incorrect for iron supplementation in the second or third trimester of pregnancy, first trimester of pregnancy, and postpartum period, respectively. However, the decision to administer iron for anaemia should be based on the doctor's discretion and the patient's symptoms. During pregnancy, women are checked for anaemia twice – once at the initial booking visit (usually around 8-10 weeks) and again at 28 weeks. The National Institute for Health and Care Excellence (NICE) has set specific cut-off levels to determine if a pregnant woman requires oral iron therapy. These levels are less than 110 g/L in the first trimester, less than 105 g/L in the second and third trimesters, and less than 100 g/L postpartum. If a woman’s iron levels fall below these cut-offs, she will be prescribed oral ferrous sulfate or ferrous fumarate. It is important to continue this treatment for at least three months after the iron deficiency has been corrected to allow the body to replenish its iron stores. By following these guidelines, healthcare professionals can help ensure that pregnant women receive the appropriate care to prevent and manage anaemia during pregnancy.
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This question is part of the following fields:
- Haematology
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Question 2
Correct
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A 36-year-old Afro-Caribbean woman presents to the Emergency Department complaining of shortness of breath, fever and a productive cough. She has suffered multiple severe infections over the past five years; however, she has no other past medical history.
On examination, you note intercostal recessions and the use of accessory muscles of respiration. She has significant coarse crepitations in her right lower lobe.
You take some basic observations, which are as follows:
Temperature: 39.8 °C
Heart rate: 120 bpm
Respiratory rate: 26 breaths/min
Blood pressure: 150/94 mmHg (lying) 146/90 mmHg (standing)
Oxygen saturation: 86% on room air
Her initial investigation findings are as follows:
Investigation Result Normal value
White cell count (WCC) 14.4 × 109/l 4–11. × 109/l
Neutrophils 12800 × 106/l 3000–5800 × 106/l
Lymphocytes 1400 × 106/l 1500–3000 × 106/l
Haemoglobin (Hb) 110 g/dl 115–155 g/dl
Mean corpuscular volume (MCV) 94 fl 76–98 fl
Platelets 360 × 109/l 150–400 × 109/l
Her chest X-ray shows significant consolidation in the right lower lobe.
A blood film comes back and shows the following: sickled erythrocytes and Howell–Jolly bodies.
A sputum culture is grown and shows Streptococcus pneumoniae, and the patient’s pneumonia is managed successfully with antibiotics and IV fluid therapy.
What condition is predisposing this patient to severe infections?Your Answer: Splenic dysfunction
Explanation:The patient has sickle cell disease and a history of recurrent infections, indicating long-term damage to the spleen. The blood film shows signs of splenic disruption, such as Howell-Jolly bodies, and a low lymphocyte level, which may be due to reduced lymphocyte storage capacity in the shrunken spleen. This is different from a splenic sequestration crisis, which is an acute pediatric emergency. The current admission may be an acute chest pain crisis, but it is not the cause of the recurrent infections. The patient does not have acute lymphoblastic leukemia, as there is no evidence of blastic cells or pancytopenia. Advanced HIV is a possibility, but the blood film suggests sickle cell disease. While the patient is at risk of an aplastic crisis, it typically occurs in younger patients after a parvovirus B19 infection, which is not present in this case.
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This question is part of the following fields:
- Haematology
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Question 3
Correct
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A frequent contributor complains of yellowing of the eyes and fever after donating blood for five days.
What should be the subsequent suitable step for the medical officer in charge of the blood bank?Your Answer: Recall blood products from this donor and arrange for retesting of this donor
Explanation:Managing Donor Complications and Blood Products
When a donor develops complications, it is important to assess how to manage both the donor and the blood products from the donation. In such cases, the blood products should be recalled until further testing and clarification of the donor’s illness. It is crucial to prevent the release of any of the blood products. However, the donor should not be immediately struck off the register until further testing results are available. It is important to take these precautions to ensure the safety of the blood supply and prevent any potential harm to recipients. Proper management of donor complications and blood products is essential to maintain the integrity of the blood donation system.
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This question is part of the following fields:
- Haematology
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Question 4
Correct
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A 36-year-old woman, who has received a 3-unit blood transfusion following a hysterectomy, begins to feel unwell with a fever and chills 3 or 4 days later. There are no obvious signs of active bleeding. On examination, you note that she is mildly jaundiced.
Investigations:
Investigation Result Normal value
Pre-transfusion haemoglobin (Hb) 92 g/l 115–155 g/l
Post-transfusion Hb 98 g/l 115–155 g/l
Platelets 180 × 109/l 150–400 × 109/l
White cell count (WCC) 7.2 × 109/l 4–11 × 109/l
Sodium (Na+) 138 mmol/l 135–145 mmol/l
Potassium (K+) 4.9 mmol/l 3.5–5.0 mmol/l
Creatinine 130 μmol/l 50–120 µmol/l
Bilirubin 90 μmol/l 2–17 µmol/l
Alanine aminotransferase (ALT) 50 IU/l 5–30 IU/l
What is the most likely diagnosis for this 36-year-old woman who has received a 3-unit blood transfusion following a hysterectomy and is experiencing fever, chills, and mild jaundice without signs of active bleeding?Your Answer: Delayed transfusion haemolysis
Explanation:Delayed Transfusion Haemolysis: A Possible Cause for Minimal Increase in Haemoglobin
A patient who has received a 3-unit transfusion has only shown a minimal increase in haemoglobin levels, which is a cause for concern. The rise in bilirubin without a corresponding increase in liver enzymes suggests haemolysis from a delayed transfusion haemolysis reaction. This type of reaction occurs when a patient without certain red cell antigens is exposed to these antigens through blood transfusion, resulting in the development of new antibodies and haemolysis after 3-14 days. Symptoms include fevers, rigors, rash, and jaundice, which are less severe and more gradual in onset than acute haemolytic reactions.
Medical management of this patient will involve screening for a wider range of possible antigens and access to a blood bank with a sufficient number of available units for a clean transfusion. Serious complications of blood transfusion are rare due to screening techniques, leukocyte depletion, and improved collection and storage.
Other potential transfusion-related reactions and their approximate time-course include hyperacute (minutes to hours), acute (hours to days), and late (days or longer). Bacterial sepsis is a possible reaction that would occur most likely in the acute time course, but it does not explain the minimal increase in haemoglobin following a 3-unit transfusion. Further haemorrhage, cholestasis of pregnancy, and disseminated intravascular coagulation (DIC) are also unlikely causes.
In conclusion, delayed transfusion haemolysis is a possible cause for the minimal increase in haemoglobin levels in this patient. It is important to consider this reaction and manage it appropriately to prevent further complications.
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This question is part of the following fields:
- Haematology
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Question 5
Incorrect
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A 5-year-old girl presents with purpura following a recent upper respiratory infection. Upon examination, her platelet count is found to be 20 ×109/L (normal range: 150-400) and a bone marrow examination reveals megakaryocyte hyperplasia. What is the correct statement regarding her condition?
Your Answer: His clotting time will be prolonged
Correct Answer: A spontaneous remission is likely
Explanation:Treatment and Prognosis of Acute Temporary Thrombocytopenic Purpura
Acute temporary thrombocytopenic purpura is a condition that often occurs after a viral infection. Fortunately, 85% of children with this condition will recover within a year. Platelet transfusions are not helpful unless there is active bleeding or surgery is necessary. Instead, treatment typically involves immune suppression with medications like prednisolone or intravenous immune globulin infusions. The clotting time remains normal because the coagulation factors are not affected. However, detecting antiplatelet antibodies can be challenging with many assays. While splenectomy may be an option in some cases, it is not recommended early in the disease as it may resolve on its own within a year. Overall, with proper treatment and monitoring, most children with acute temporary thrombocytopenic purpura can expect a positive outcome.
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This question is part of the following fields:
- Haematology
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Question 6
Incorrect
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A 45-year-old Afro-Caribbean man presents to the Emergency Department with acute severe chest pain, fever and a cough, which he has had for five days. Examination revealed signs of jaundice and the spleen was not big enough to be palpable.
You take some basic observations:
Temperature: 38 °C
Respiratory rate: 26 breaths/min
O2 saturation: 86%
Heart rate: 134 bpm (regular)
Blood pressure (lying): 134/86 mmHg
Blood pressure (standing): 132/90 mmHg
His initial investigation findings are as follows:
Investigation Result Normal
White cell count (WCC) 13.8 × 109/l 4–11.0 × 109/l
Neutrophils 7000 × 106/l 3000–5800 × 106/l
Lymphocytes 2000 × 106/l 1500–3000 × 106/l
Haemoglobin (Hb) 105 g/l 135–175 g/l
Mean corpuscular volume (MCV) 110 fl 76–98 fl
Platelets 300 × 109/l 150–400 × 109/l
Troponin l 0.01 ng/ml < 0.1 ng/ml
D-dimer 0.03 μg/ml < 0.05 μg/ml
Arterial blood gas (ABG) showed type 1 respiratory failure with a normal pH. Chest X-ray showed left lower lobe consolidation.
The patient was treated successfully and is due for discharge tomorrow.
Upon speaking to the patient, he reveals that he has suffered two similar episodes this year.
Given the likely diagnosis, what medication should the patient be started on to reduce the risk of further episodes?Your Answer: Tuberculosis (TB) vaccination
Correct Answer: Hydroxycarbamide (hydroxyurea)
Explanation:Treatment Options for a Patient with Sickle Cell Disease and Acute Chest Pain Crisis
A patient with sickle cell disease is experiencing an acute chest pain crisis, likely due to a lower respiratory tract infection. Hydroxycarbamide is recommended as a preventative therapy to reduce the risk of future crises by increasing the amount of fetal hemoglobin and reducing the percentage of red cells with hemoglobin S. Granulocyte colony-stimulating factor (G-CSF) is not necessary as the patient has a raised white blood cell count. Inhaled beclomethasone is not appropriate as asthma or COPD are not likely diagnoses in this case. Oral prednisolone may be used as a preventative therapy for severe asthma, but is not recommended for COPD and is not appropriate for this patient’s symptoms. A tuberculosis (TB) vaccination may be considered for primary prevention, but would not be useful for someone who has already been infected.
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This question is part of the following fields:
- Haematology
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Question 7
Correct
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An 80-year-old man comes to the clinic with painless, symmetrical swellings in his neck. He reports no other symptoms. Laboratory tests show a haemoglobin level of 100 g/l and a white cell count of 23 × 109/l. A blood film reveals smear cells, with more than 60% of the cells being small mature lymphocytes. What is the probable diagnosis?
Your Answer: Chronic lymphocytic leukaemia
Explanation:Differentiating Leukaemia and Lymphoma: Understanding CLL and Other Types
Leukaemia and lymphoma are two types of blood cancers that can present with similar symptoms. However, each type has distinct characteristics that can help differentiate them. Among the different types of leukaemia and lymphoma, B-cell chronic lymphocytic leukaemia (B-CLL) is the most common leukaemia in adults. It is characterized by peripheral blood lymphocytosis and uncontrolled proliferation of B cell lymphocytes in the bone marrow, lymph nodes, and splenomegaly. Patients with CLL are often asymptomatic, and the condition is often picked up incidentally.
In contrast, acute lymphoblastic leukaemia is a common leukaemia of children aged 2–5 years and is very rare in adults. Multiple myeloma, on the other hand, is the uncontrolled proliferation of plasma cells and presents with bone pain, hypercalcaemia, renal failure, and neutropenia. Chronic myeloid leukaemia tends to present with more systemic, B symptoms in a slightly younger age group, and a classic symptom is massive hepatosplenomegaly.
While lymphoma is a possibility in this age group, CLL is the most likely diagnosis as it is more common in this age group and in the western world. Further investigation would be used to confirm the diagnosis. Understanding the characteristics of each type of leukaemia and lymphoma can aid in accurate diagnosis and appropriate treatment.
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This question is part of the following fields:
- Haematology
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Question 8
Incorrect
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A 35-year-old man comes to you seeking advice. He had a splenectomy ten years ago after a cycling accident and has been in good health since. However, a friend recently told him that he should be receiving treatment for his splenectomy. He is currently not taking any medication.
What would you recommend to him?Your Answer: No treatment
Correct Answer: Pneumococcal vaccination
Explanation:Asplenic Patients and the Importance of Vaccination
Asplenic patients are individuals who have had their spleen removed, leaving them at risk of overwhelming bacterial infections, particularly from pneumococcus and meningococcus. To prevent such infections, it is recommended that these patients receive the Pneumovax vaccine two weeks before surgery or immediately after emergency surgery. This vaccine should be repeated every five years. Additionally, influenzae vaccination is also recommended to prevent super added bacterial infections.
While oral penicillin is recommended for children, its long-term use in adults is a topic of debate. However, current guidance suggests that splenectomized patients should receive both antibiotic prophylaxis and appropriate immunization. It is crucial to take these preventative measures to protect asplenic patients from potentially life-threatening infections.
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This question is part of the following fields:
- Haematology
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Question 9
Incorrect
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What is the blood product that poses the greatest risk of bacterial infection transmission during transfusion?
Your Answer: Cryoprecipitate
Correct Answer: Platelets
Explanation:Storage Conditions and Bacterial Contamination Risk in Blood Products
Platelets, which are stored at room temperature, have the highest risk of bacterial contamination among all blood products. On the other hand, packed red cells are stored at an average of 4°C, while fresh frozen plasma and cryoprecipitate are stored at −20°C. Factor VIII concentrates, which are heat inactivated freeze dried products, have a minimal risk of bacterial contamination.
It is important to note that the risk of bacterial contamination in blood products is directly related to their storage conditions. Therefore, proper storage and handling of blood products is crucial to ensure their safety and efficacy. By following strict guidelines and protocols, healthcare professionals can minimize the risk of bacterial contamination and ensure that patients receive safe and effective blood products.
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This question is part of the following fields:
- Haematology
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Question 10
Incorrect
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A 68-year-old woman is admitted to Accident and Emergency with a massive upper gastrointestinal haemorrhage. She has a history of atrial fibrillation and is on warfarin. Since admission, she has had several episodes of copious haematemesis. Her blood pressure is 80/54 mmHg, and her heart rate is 136 beats/min. You have started resuscitation with normal saline and have ordered a group and save and a crossmatch. Her INR is currently 8.4. What is the most appropriate way to manage her INR?
Your Answer: Withhold warfarin, give iv vitamin K
Correct Answer: Withhold warfarin, give iv vitamin K and prothrombin complex concentrate
Explanation:Treatment for Haemorrhage in Patients on Warfarin: Guidelines from the BNF
The British National Formulary (BNF) provides clear guidance on the appropriate treatment for haemorrhage in patients on warfarin. In cases of major bleeding, warfarin should be stopped and intravenous phytomenadione (vitamin K1) and dried prothrombin complex concentrate should be administered. Recombinant factor VIIa is not recommended for emergency anticoagulation reversal. For INR levels above 8.0 with minor bleeding, warfarin should be withheld and intravenous vitamin K given. Fresh-frozen plasma can be used if prothrombin complex concentrate is unavailable. For INR levels between 5.0 and 8.0 without bleeding, warfarin should be withheld and oral vitamin K given. For INR levels between 5.0 and 8.0 with minor bleeding, warfarin should be withheld and intravenous vitamin K given. If prothrombin complex concentrate is unavailable, fresh-frozen plasma can be used. In cases where INR is between 5.0 and 8.0 without bleeding, one or two doses of warfarin should be withheld and subsequent maintenance doses reduced. This guidance can help healthcare professionals provide appropriate and effective treatment for patients on warfarin experiencing haemorrhage.
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This question is part of the following fields:
- Haematology
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Question 11
Incorrect
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A 35-year-old man presents with progressive weakness in his right upper limb and both lower limbs over the past four months. He has also developed digital infarcts affecting the second and third fingers on the right hand and the fifth finger on the left. On examination, his blood pressure is 160/140 mm Hg, all peripheral pulses are palpable, and there is an asymmetrical neuropathy. Laboratory investigations reveal a haemoglobin level of 120 g/L (130-170), a white cell count of 12.5 ×109/L (4-10), a platelet count of 430 ×109/L (150-450), and an ESR of 50 mm/hr (0-15). Urine examination shows proteinuria and 10-15 red blood cells per high power field without casts. What is the most likely diagnosis?
Your Answer: Granulomatosis with polyangiitis
Correct Answer: Polyarteritis nodosa
Explanation:Polyarteritis nodosa (PAN) is a systemic disease that affects small or medium-sized arteries in various organs, leading to a wide range of symptoms such as nerve damage, skin issues, joint and muscle pain, kidney problems, and heart issues. Laboratory findings include anemia, increased white blood cells and platelets, and elevated inflammatory markers. ANCA testing can help differentiate PAN from other vasculitis diseases.
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This question is part of the following fields:
- Haematology
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Question 12
Incorrect
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The most common error in transfusion according to the SHOT (serious hazards of transfusion) analysis?
Your Answer: Cross match error in the blood bank laboratory
Correct Answer: Wrong identification or mislabelling of patient or sample
Explanation:Common Causes of Transfusion Errors
Mislabelling of samples, requests, or misidentifying recipients are the most frequent causes of transfusion errors. This was confirmed by the SHOT study, which examined transfusion errors and near-misses in a nationwide audit in the United Kingdom. Although other errors, such as cross-match errors, incorrect storage, and transfusion reactions due to undetected antibodies, do occur, they are infrequent.
In summary, the SHOT study found that the most common causes of transfusion errors are related to labelling and identification. Therefore, it is crucial to implement strict protocols and procedures to ensure that samples and requests are correctly labelled and recipients are accurately identified to prevent these errors from occurring. While other errors may occur, they are rare and can be mitigated through proper training and adherence to established guidelines.
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This question is part of the following fields:
- Haematology
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Question 13
Incorrect
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A middle-aged woman presents with increasing fatigue and daytime exhaustion that is starting to affect her work as a receptionist. She has been referred to the gynaecology clinic for evaluation of menorrhagia. What results would you anticipate on her complete blood count (CBC)?
Your Answer: Haemoglobin - low, MCV - raised
Correct Answer: Haemoglobin - low, MCV - reduced
Explanation:Interpreting Blood Results for Anaemia: Understanding the Relationship between Haemoglobin and MCV
When interpreting blood results for anaemia, it is important to understand the relationship between haemoglobin and mean corpuscular volume (MCV). A low haemoglobin and reduced MCV may indicate iron deficiency anaemia secondary to menorrhagia, which is a common cause of microcytosis. Treatment for this would involve managing the underlying menorrhagia and supplementing with iron. On the other hand, a low haemoglobin and raised MCV may indicate macrocytic anaemia, commonly associated with vitamin B12 or folate deficiency. It is important to note that a normal haemoglobin with a reduced MCV or a normal haemoglobin and MCV is unlikely in cases of significant symptoms and abnormal bleeding. Understanding these relationships can aid in the diagnosis and management of anaemia.
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This question is part of the following fields:
- Haematology
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Question 14
Incorrect
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A 40-year-old man presents to his GP after discovering a low haemoglobin level during a routine blood donation. He has been experiencing fatigue and breathlessness during mild exertion for the past few weeks. He has donated blood twice before, with the most recent donation being a year ago. He has been taking 30 mg lansoprazole daily for several years to manage his acid reflux, which is well controlled. He also takes cetirizine for hay fever. He denies any nausea, vomiting, changes in bowel habits, or blood in his stools or urine. His diet is diverse, and he is not a vegetarian or vegan. Physical examinations of his chest and abdomen are normal, and urinalysis is unremarkable. The following are his blood test results:
- Haemoglobin: 100 g/l (normal range: 135-175 g/l)
- Mean corpuscular volume (MCV): 72.0 fl (normal range: 82-100 fl)
- White cell count (WCC): 6.1 × 109/l (normal range: 4-11 × 109/l)
- Platelets: 355 × 109/l (normal range: 150-400 × 109/l)
- Ferritin: 6.0 µg/l (normal range: 20-250 µg/l)
- Immunoglobulin A (IgA) tissue transglutaminase antibody (tTGA) is negative, and IgA level is normal.
What is the most appropriate initial management step?Your Answer: Trial of oral iron (eg ferrous sulphate), with repeat full blood count in 3 weeks
Correct Answer: Referral to gastroenterology
Explanation:Management of Unexplained Microcytic Anemia with Low Ferritin
Unexplained microcytic anemia with low ferritin levels requires prompt investigation to identify the underlying cause. According to National Institute for Health and Care Excellence (NICE) guidelines, men with unexplained iron deficiency anemia and a hemoglobin level below 110 g/l should be urgently referred for upper and lower gastrointestinal investigations, regardless of age. A trial of oral iron may be appropriate in pregnant women or premenopausal women with a history of menorrhagia and without gastrointestinal symptoms or a family history of gastrointestinal cancer.
A faecal occult blood test is not recommended as it has poor sensitivity and specificity. Referral to haematology is not necessary as first-line investigations would be upper and lower gastrointestinal investigations, and thus a referral to gastroenterology would be warranted. It is important to rule out blood loss, in particular, through gastrointestinal investigations, before implicating poor dietary intake as the cause of the patient’s low iron stores and microcytic anemia.
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This question is part of the following fields:
- Haematology
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Question 15
Correct
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A 25-year-old patient presented with red rashes on their feet. Upon examination, they were found to be pale with purpuric spots on their lower legs. Their temperature was 38.3 °C and they also complained of nausea. On the second day of admission, their fever increased and they became disoriented. New bleeding spots started appearing on their face. Blood reports revealed low hemoglobin, high white cell count, low platelets, and high creatinine levels. A peripheral blood smear showed helmet cells and anisocytosis. The CSF study was normal. What test should be done next for this patient?
Your Answer: Urinary β-human chorionic gonadotrophin (hCG)
Explanation:The patient is presenting with thrombotic thrombocytopenic purpura (TTP), which is characterized by low platelet count due to clotting and platelet sequestration in small vessels. TTP is associated with haemolytic anaemia, thrombocytopenic purpura, fever, and neurological and renal abnormalities. The patient’s risk factors for TTP include being female, obese, pregnant, and of Afro-Caribbean origin. To determine the appropriate management, a urinary β-hCG test should be performed to establish pregnancy status. The first-line treatment for TTP is plasma exchange with fresh frozen plasma. Blood cultures should also be performed to check for underlying septicaemia. Antiplatelet antibody titres can be raised in idiopathic thrombocytopenic purpura (ITP), but ITP does not cause renal failure. A bone marrow study is appropriate to rule out leukaemia. Illicit drug use should also be considered as a cause of disseminated intravascular coagulation (DIC).
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This question is part of the following fields:
- Haematology
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Question 16
Incorrect
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A 23-year-old female patient presents at the clinic for a check-up. She complains of irregular, heavy menstrual periods, has a BMI of 30 kg/m2, and experiences acne and excessive facial hair growth. She is not taking any medication. Her sister has been diagnosed with polycystic ovarian syndrome (PCOS), and she suspects that she may have the same condition.
During the physical examination, her blood pressure is 149/90 mmHg, and her pulse is regular at 78 bpm. She has excessive hair growth on her beard line and upper torso, and central obesity. However, the rest of her physical examination is normal.
Which blood test is the most diagnostic for PCOS?Your Answer: Oestrogen
Correct Answer: Total/free testosterone
Explanation:Diagnosis and Associated Risks of Polycystic Ovary Syndrome (PCOS)
Polycystic ovary syndrome (PCOS) is diagnosed when there is evidence of at least two out of three features, with other potential causes excluded. These features include oligoamenorrhoea, elevated levels of total/free testosterone (or clinical features suggestive of hyperandrogenism), or the presence of polycystic ovaries on ultrasound. While an extremely marked elevation in testosterone can suggest an androgen-secreting tumor, this is rare. Additionally, raised luteinising hormone (LH) with a normal follicle-stimulating hormone (FSH) can lead to an elevated LH/FSH ratio, but this is not diagnostic.
PCOS is associated with an increased risk of impaired glucose tolerance, although this may take a number of years to become apparent. Furthermore, there may be a reduction in levels of oestriol, although this is not always a consistent finding. It is important to diagnose PCOS early on to manage the associated risks and prevent potential complications.
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This question is part of the following fields:
- Haematology
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Question 17
Incorrect
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A 67-year-old man was admitted with pain in the left groin. He had fallen from his chair, after which the pain started. He was unable to walk and his left leg was externally rotated. X-rays revealed a neck of femur fracture. He lives alone in a flat and is a vegetarian. His past medical history includes shortness of breath, body itching and occasional swelling of legs. His blood tests revealed:
Investigation Result Normal range
Haemoglobin 120 g/l 135–175 g/l
Calcium 3.5 mmol/l 2.20–2.60 mmol/l
Phosphate 1.52 mmol/l 0.70–1.40 mmol/l
Erythrocyte sedimentation rate (ESR) 184 mm/h 0–15 mm/h
What is the most likely diagnosis?Your Answer: Malignancy with metastasis
Correct Answer: Multiple myeloma
Explanation:Diagnosis of Multiple Myeloma in a Patient with Pathological Fracture
A man has sustained a pathological fracture after a minor trauma, which is likely due to lytic bone lesions. He also presents with anemia, raised calcium, and ESR, all of which are consistent with a diagnosis of multiple myeloma. This is further supported by his age group for presentation.
Other possible diagnoses, such as osteoporosis, vitamin D deficiency, acute leukemia, and malignancy with metastasis, are less likely based on the absence of specific symptoms and laboratory findings. For example, in osteoporosis, vitamin D and phosphate levels are normal, and ESR and hemoglobin levels are not affected. In vitamin D deficiency, calcium and phosphate levels are usually normal or low-normal, and ESR is not raised. Acute leukemia typically presents with systemic symptoms and normal serum calcium levels. Malignancy with metastasis is possible but less likely without preceding symptoms suggestive of an underlying solid tumor malignancy.
In summary, the patient’s clinical presentation and laboratory findings suggest a diagnosis of multiple myeloma.
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This question is part of the following fields:
- Haematology
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Question 18
Incorrect
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What is the diagnostic tool for beta thalassaemia?
Your Answer: HbA1c estimation
Correct Answer: Haemoglobin electrophoresis
Explanation:Diagnosis of Beta Thalassaemia
Beta thalassaemia can be diagnosed through the presence of mild microcytic anaemia, target cells on the peripheral blood smear, and a normal red blood cell count. However, the diagnosis is confirmed through the elevation of Hb A2, which is demonstrated by electrophoresis. In beta thalassaemia patients, the Hb A2 level is typically around 4-6%.
It is important to note that in rare cases where there is severe iron deficiency, the increased Hb A2 level may not be observed. However, it becomes evident with iron repletion. Additionally, patients with the rare delta-beta thalassaemia trait do not exhibit an increased Hb A2 level.
In summary, the diagnosis of beta thalassaemia can be suggested through certain symptoms and blood tests, but it is confirmed through the measurement of Hb A2 levels.
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This question is part of the following fields:
- Haematology
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Question 19
Incorrect
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A 70-year-old man presents with fatigue, pallor and shortness of breath. He has been battling with an indolent colon carcinoma for the past 5 years. He also suffers from insulin-dependent diabetes, hypertension, coronary artery disease and rheumatoid arthritis. He has been feeling unwell for the past few weeks. He denies any history of melaena or haematochezia and has been amenorrhoeic for decades. A bedside stool guaiac test is negative for any blood in the stool. He is well nourished, reports taking daily supplements and is not a vegetarian. He reports that his haematocrit is 0.28 (0.35–0.55) and haemoglobin level 100 g/l (115–155 g/l).
What additional findings would you expect to observe in his full blood count?Your Answer: Decreased serum transferrin receptor
Correct Answer: Increased ferritin
Explanation:Understanding Anaemia of Chronic Disease: Increased Ferritin and Decreased TIBC
Anaemia of chronic disease is a type of anaemia that is commonly seen in patients with chronic inflammatory conditions. It is characterised by a low haemoglobin level and low haematocrit, but unlike iron deficiency anaemia, it is associated with increased ferritin levels and decreased total iron-binding capacity (TIBC). This is because ferritin is a serum reactive protein that is elevated in response to the underlying inflammatory process.
Diagnosis of anaemia of chronic disease requires the presence of a chronic inflammatory condition and anaemia, which can be either normocytic or microcytic. It is important to note that a haemoglobin level of <80 g/l is very rarely associated with this type of anaemia. Treatment involves addressing the underlying disorder causing the anaemia and monitoring the haemoglobin level. Blood transfusion is only used in severe cases. It is important to differentiate anaemia of chronic disease from other types of anaemia. For example, it is characterised by a low reticulocyte count, and not reticulocytosis. Serum transferrin receptor is not affected in anaemia of chronic disease and would therefore be normal. Additionally, TIBC is reduced in anaemia of chronic disease, whereas it is increased in iron deficiency anaemia. Finally, anaemia of chronic disease is associated with either microcytosis or normocytosis, whereas macrocytosis is associated with other types of anaemia such as folate deficiency, vitamin B12 deficiency, alcohol excess, and myelodysplastic disease. In summary, understanding the unique features of anaemia of chronic disease, such as increased ferritin and decreased TIBC, can aid in its diagnosis and management.
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This question is part of the following fields:
- Haematology
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Question 20
Incorrect
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A 65-year-old man has been diagnosed as being vitamin B12-deficient with a B12 level of < 50 pmol/l (160–900 pmol/l) and a haemoglobin (Hb) level of 85 (115–155 g/l). It is not diet-related.
What is the most suitable course of action?Your Answer:
Correct Answer: Hydroxocobalamin 1 mg im three times a week for two weeks and then 1 mg im 3-monthly
Explanation:Treatment Options for Pernicious Anemia with Hydroxocobalamin
Pernicious anemia is a type of anemia caused by a deficiency in vitamin B12, often due to the presence of anti-intrinsic factor antibodies. Hydroxocobalamin is a form of vitamin B12 that can be used for supplementation in patients with pernicious anemia. Here are some treatment options with hydroxocobalamin:
1. Hydroxocobalamin 1 mg IM three times a week for two weeks, then 1 mg IM every three months: This is the standard dose for patients with pernicious anemia without neurological deficits.
2. Hydroxocobalamin 1 mg IM on alternate days indefinitely: This is used for patients with pernicious anemia and neurological involvement until symptom improvement reaches a plateau, then maintenance involves 1 mg IM every two months.
3. Hydroxocobalamin 1 mg IV three times a week for two weeks, then monthly: This is used for the treatment of cyanide poisoning, not for pernicious anemia.
4. Hydroxocobalamin 1 mg IM three times a week for two weeks, then oral 1 mg hydroxocobalamin: Oral supplementation is not appropriate for patients with pernicious anemia due to absorption issues.
5. Hydroxocobalamin 1 mg subcutaneously three times a week for two weeks, monthly for three months, then 3-monthly: Hydroxocobalamin is administered IM, not subcutaneously.
In conclusion, hydroxocobalamin is an effective treatment option for pernicious anemia, but the dosage and administration route should be carefully considered based on the patient’s individual needs.
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This question is part of the following fields:
- Haematology
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Question 21
Incorrect
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A 50-year-old patient presents to the general practitioner with a complaint of darkening of urine, particularly noticeable in the morning. The patient has no family history of bleeding disorders and was recently hospitalized for deep venous thrombosis in the right leg. Upon examination, the patient's heart and lungs appear normal. Blood tests reveal anemia, elevated levels of lactate dehydrogenase (LDH), high bilirubin levels, and a high reticulocyte count. What is the most likely cause of this patient's condition?
Your Answer:
Correct Answer: Phosphatidylinositol glycan A defect in red blood cells
Explanation:Understanding Different Causes of Haemolytic Anaemia
Haemolytic anaemia is a condition where red blood cells are destroyed faster than they can be produced, leading to a shortage of oxygen-carrying cells in the body. There are various causes of haemolytic anaemia, including phosphatidylinositol glycan A defect, vitamin B12 deficiency, glucose-6-phosphate dehydrogenase deficiency, loss of spectrin in the red blood cell membrane, and immunoglobulin M (IgM) antibody against red blood cells.
Phosphatidylinositol glycan A defect, also known as nocturnal haemoglobinuria, is an acquired condition caused by a mutation in the gene encoding for phosphatidylinositol glycan A. This leads to an increased susceptibility of red blood cells to complement proteins in an acidotic environment, resulting in haemolysis. Patients typically present with haematuria in the morning, and treatment involves managing symptoms and using medication such as eculizumab.
Vitamin B12 deficiency causes megaloblastic anaemia and is not related to haemolysis. Glucose-6-phosphate dehydrogenase deficiency is an inherited X-linked recessive condition that results in red blood cell breakdown. Loss of spectrin in the red blood cell membrane is seen in hereditary spherocytosis, where red blood cells become spherical and are trapped in the spleen, leading to haemolysis. IgM antibody against red blood cells causes autoimmune haemolytic anaemia, where the antibody binds to the I antigen on the membrane of red blood cells, leading to haemolysis at low temperatures.
Understanding the different causes of haemolytic anaemia is crucial for proper diagnosis and treatment.
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This question is part of the following fields:
- Haematology
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Question 22
Incorrect
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A 68-year-old man who has been diagnosed with severe Gram-positive sepsis is admitted to the Intensive Care Unit (ICU). However, he is starting to deteriorate despite being on the Sepsis Six Bundle. He is pyrexial and appears very unwell. On examination:
Investigation Results Normal value
Respiratory rate (RR) 30 breaths/minute 12–18 breaths/minute
Heart rate (HR) 120 bpm 60–100 bpm
Blood pressure (BP) 88/40 mmHg < 120/80 mmHg
You noted some bleeding along the cannulation site and on his gums. The coagulation profile showed prolonged prothrombin time, a decrease in fibrinogen level and marked elevation of D-dimer. He has some purpuric rash on his extremities.
Which of the following is the most likely cause of the above condition?Your Answer:
Correct Answer: Disseminated intravascular coagulopathy (DIC)
Explanation:Comparison of DIC, von Willebrand’s Disease, Liver Failure, Haemophilia, and Heparin Administration
Disseminated intravascular coagulopathy (DIC) is a serious complication of severe sepsis that can lead to multiorgan failure and widespread bleeding. It is characterized by high prothrombin time and the use of fibrinogen for widespread clot formation, resulting in high levels of D-dimer due to intense fibrinolytic activity. DIC is a paradoxical state in which the patient is prone to clotting but also to bleeding.
Von Willebrand’s disease is an inherited disorder of coagulation that is usually autosomal dominant. There is insufficient information to suggest that the patient in this case has von Willebrand’s disease.
Liver failure could result in excessive bleeding due to disruption of liver synthetic function, but there is no other information to support liver failure in this case. Signs of hepatic encephalopathy or jaundice would also be expected.
Haemophilia is an X-linked recessive disorder of coagulation that is characterized by prolonged activated partial thromboplastin time (APTT) and normal prothrombin time.
There is no information to suggest that heparin has been administered, and the bleeding time and platelet count would be normal.
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This question is part of the following fields:
- Haematology
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Question 23
Incorrect
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A middle-aged patient is newly diagnosed with a bleeding disorder after complaining of heavy periods. She presents with a prolonged APTT and bleeding time, but normal indices. The patient reports a family history of bleeding disorders on her mother's side. She denies any prior history of bleeding or bruising after minor surgical procedures. What is the most likely bleeding disorder in this patient?
Your Answer:
Correct Answer: von Willebrand’s disease
Explanation:The diagnosis in this scenario is von Willebrand’s disease, which is the most common hereditary bleeding disorder caused by a defective von Willebrand factor. This protein plays a crucial role in haemostasis by assisting in platelet adhesion and stabilising coagulation factor VIII. A deficiency in von Willebrand factor prolongs bleeding time and APTT, but does not affect platelet counts or PT. It is more pronounced in women and may present with menorrhagia. Treatment involves administration of recombinant von Willebrand factor. Haemophilia A, Bernard-Soulier syndrome, Glanzmann’s thrombasthenia, and vitamin K deficiency are other bleeding disorders with different causes and blood test results.
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This question is part of the following fields:
- Haematology
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Question 24
Incorrect
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A plasma donor on a continuous flow separator machine experiences light headedness, muscle cramps, and circumoral paraesthesia. What should be the next course of action in managing this patient?
Your Answer:
Correct Answer: Investigate and treat citrate toxicity
Explanation:Citrate Toxicity and Hypocalcaemia in Apheresis Patients
This patient is experiencing symptoms of citrate toxicity, which has led to hypocalcaemia. While it is possible for haemorrhage to occur at the site of venepuncture or venous access, this is typically easy to identify through clinical examination. Sepsis is an uncommon occurrence if proper aseptic precautions have been taken, and the symptoms described here are not indicative of an infection. Immediate treatment is necessary, and this can be achieved by slowing or stopping the apheresis process. Treatment options include the administration of oral or intravenous calcium replacement.
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This question is part of the following fields:
- Haematology
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Question 25
Incorrect
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A 45-year-old patient presents with the following full blood count (FBC) result: Hb 105 g/L (130-180), RBC 4.5 ×1012/L, Hct 0.353 (0.4-0.52), MCV 75 fL (80-96), MCH 32.5 pg (28-32), Platelets 325 ×109/L (150-400), WBC 7.91 ×109/L (4-11), Neutrophils 6.15 ×109/L (1.5-7.0), Lymphocytes 1.54 ×109/L (1.5-4.0), Monocytes 0.33 ×109/L (0-0.8), Eosinophils 0.16 ×109/L (0.04-0.4), Basophils 0.08 ×109/L (0-0.1), Others 0.14 ×109/L. What would be the most appropriate initial investigation for this FBC result?
Your Answer:
Correct Answer: Ferritin concentration
Explanation:Interpretation of FBC Results
When analyzing a full blood count (FBC), a microcytosis with low mean corpuscular volume (MCV) and anaemia (low Hb) is indicative of iron deficiency anaemia. To confirm this, a ferritin test should be requested, followed by an investigation into the source of blood loss if iron deficiency is confirmed. If faecal occult blood is positive, an endoscopy may be necessary. On the other hand, macrocytic anaemia with elevated MCV is caused by folate and B12 deficiency, while hypothyroidism is associated with elevated MCV. While a bone marrow biopsy can also show iron deficiency, it is an invasive procedure and is not necessary in a primary care setting. Therefore, interpreting FBC results requires a thorough of the different types of anaemia and their associated causes.
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This question is part of the following fields:
- Haematology
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Question 26
Incorrect
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A 28-year-old woman presents to her general practitioner after suffering from several miscarriages and is afraid her husband will leave her. The patient gave the history of bruising even with minor injuries and several spontaneous miscarriages. On examination, the patient is noted to have a rash in a butterfly distribution on the nose and cheeks. Tests reveal 1+ proteinuria only.
What is the most likely cause of her main concern?Your Answer:
Correct Answer: Antiphospholipid syndrome (APLS)
Explanation:Understanding Antiphospholipid Syndrome (APLS) and its Link to Recurrent Spontaneous Abortions
When a young woman experiences multiple spontaneous abortions, it may indicate an underlying disorder. One possible cause is antiphospholipid syndrome (APLS), a hypercoagulable state with autoantibodies against phospholipid components. This disorder can lead to recurrent spontaneous abortions during the first 20 weeks of pregnancy, and approximately 9% of APLS patients also have renal abnormalities.
Other potential causes of recurrent spontaneous abortions include poorly controlled diabetes, nephritic syndrome, dermatomyositis, and anatomic defects like a bicornuate uterus. However, the examination and test results in this case suggest a systemic etiology, making APLS a strong possibility.
Diagnosing systemic lupus erythematosus (SLE), which can also cause nephritic or nephrotic syndrome, requires meeting at least 4 out of 11 criteria established by the American Rheumatism Association (ARA).
Understanding these potential causes and their links to recurrent spontaneous abortions can help healthcare providers identify and treat underlying disorders in women of reproductive age.
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This question is part of the following fields:
- Haematology
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Question 27
Incorrect
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A 55-year-old male comes to the clinic complaining of pain in his right leg, five days after having a cholecystectomy. Upon examination, the right leg is swollen, tender, and warm, while the left leg appears normal. What is the most suitable test to confirm the diagnosis?
Your Answer:
Correct Answer: Venous Dopplers
Explanation:Diagnosis and Treatment of Deep Vein Thrombosis
This patient is showing typical symptoms of a deep vein thrombosis (DVT). While you may not have access to the necessary investigations in your practice, it is important to have knowledge of secondary care investigations and their appropriate use, as highlighted in the latest MRCGP curriculum statement. Venous Dopplers are the most likely test to confirm the diagnosis, while a venogram is considered the gold standard.
DVTs should be treated with anticoagulation, typically with the use of DOACs due to the potential risk of embolisation. It is important to promptly diagnose and treat DVTs to prevent complications such as pulmonary embolism. As a healthcare professional, it is important to stay up-to-date with the latest guidelines and recommendations for the diagnosis and treatment of DVTs.
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This question is part of the following fields:
- Haematology
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Question 28
Incorrect
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A 30-year-old donor experiences a sudden fainting spell during blood donation. What should be the immediate course of action to manage this adverse event?
Your Answer:
Correct Answer: Temporarily cease the donation, consider fluid replacement and elevate the donor's legs
Explanation:Donor safety is important in blood donation. Fainting is a common adverse event and should be treated by stopping the donation and reviving the donor. Elevation of the legs and monitoring vitals is necessary. Donors should be counseled on pre-donation expectations and encouraged to drink fluids after recovery. Hemoglobin checks are no longer required.
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This question is part of the following fields:
- Haematology
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Question 29
Incorrect
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A 25-year-old woman with sickle-cell disease is being evaluated in Haematology Outpatients. She has been admitted several times due to sickle-cell crisis and abdominal pain, and there is suspicion of multiple splenic infarcts. What blood film abnormalities would indicate hyposplenism?
Your Answer:
Correct Answer: Howell–Jolly bodies
Explanation:Blood Film Abnormalities and Their Significance
Blood film abnormalities can provide important diagnostic information about a patient’s health. One such abnormality is Howell-Jolly bodies, which are nuclear remnants found in red blood cells and indicate hyposplenism. Other abnormalities seen in hyposplenism include target cells, Pappenheimer cells, increased red cell anisocytosis and poikilocytosis, and spherocytes. Patients with hyposplenism are at increased risk of bacterial infections and should be vaccinated accordingly.
Rouleaux formation, on the other hand, is a stack of red blood cells that stick together, forming a rouleau. This occurs in conditions where plasma protein is high, such as multiple myeloma, some infections, Waldenström’s macroglobulinemia, and some cancers.
Schistocytes are irregular and jagged fragments of red blood cells that occur due to mechanical destruction of red blood cells in conditions such as hemolytic anemia. They are not typically seen in hyposplenism.
Tear drop cells, which are seen in conditions where there is abnormality of bone marrow function, such as myelofibrosis, are also not seen in hyposplenism.
Finally, toxic granulation occurs during inflammatory processes such as bacterial infection or sepsis and refers to neutrophils which contain dark, coarse granules. It is not present in hyposplenism.
In summary, understanding blood film abnormalities and their significance can aid in the diagnosis and management of various medical conditions.
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This question is part of the following fields:
- Haematology
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Question 30
Incorrect
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A 75-year-old woman who is in hospital for pneumonia begins to deteriorate on her third day of intravenous antibiotics. She develops purple bruises on her skin and on the inside of her mouth, and tells you that she feels short of breath and fatigued. Her platelet count has dropped from 165 × 109/l to 43 × 109/l over the last two days. She also complains of blurred vision in the last few hours.
Which of the following will form part of her initial management?Your Answer:
Correct Answer: Plasma exchange
Explanation:Treatment Options for Thrombotic Thrombocytopenic Purpura
Thrombotic thrombocytopenic purpura (TTP) is a medical emergency that requires prompt treatment. The most common initial management for TTP is plasma exchange, which aims to remove the antibodies that block the ADAMTS13 enzyme and replace the ADAMTS13 enzymes in the blood. Intravenous methylprednisone and rituximab may also be used in conjunction with plasma exchange.
Aspirin should only be considered when the platelet count is above 50 × 109/l, and even then, it is not an essential part of initial management and will depend on the patient’s comorbidities. Cryoprecipitate is not recommended for TTP treatment, as it is indicated for disseminated intravascular coagulation or fibrinogen deficiency.
Factor VIII infusion is used for haemophilia A, a C-linked-recessive disorder that presents with excessive bleeding and anaemia, and is less likely to be associated with thrombocytopenia and TTP. Platelet transfusions are relatively contraindicated in TTP and should only be considered in cases of catastrophic bleeding or urgent surgery that cannot wait until after plasma exchange. Platelet transfusions increase the risk of arterial thrombosis, which can lead to myocardial infarction and stroke.
In summary, plasma exchange is the most common initial management for TTP, and other treatment options should be carefully considered based on the patient’s individual circumstances. Early diagnosis and prompt treatment are crucial for a successful outcome.
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This question is part of the following fields:
- Haematology
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