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Question 1
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A 28-year-old woman at 36 weeks’ gestation presents with severe abdominal pain and a small amount of vaginal bleeding. The pregnancy has been uncomplicated and previous scans have been normal. On examination, she has tenderness over the uterine fundus, plus:
Investigation Result Normal value
Blood pressure (BP) 90/60 mmHg < 120/< 80 mmHg
Heart rate 110 beats per minute 60–100 beats per minute
Respiratory rate (RR) 18 breaths per minute 12–20 breaths per minute
O2 Saturation 98% 95–100%
What is the diagnosis?Your Answer: Placental abruption
Explanation:Pregnancy Complications: Placental Abruption, Uterine Rupture, Placenta Previa, and Placenta Accreta
During pregnancy, there are several complications that can occur, including placental abruption, uterine rupture, placenta previa, and placenta accreta.
Placental abruption happens when part of the placenta separates prematurely from the uterus. Symptoms include abdominal or back pain, vaginal bleeding (although there may be no bleeding in concealed abruption), a hard abdomen, and eventually shock. Treatment involves hospitalization, resuscitation, and delivery of the baby.
Uterine rupture is rare and usually occurs during labor, especially in women who have had previous uterine surgery. Symptoms include abdominal pain and tenderness, vaginal bleeding, fetal heart rate deterioration, and hypovolemic shock. Emergency exploratory laparotomy with Caesarean section and fluid resuscitation is necessary.
Placenta previa occurs when the placenta attaches to the lower uterine segment and often presents with painless vaginal bleeding after the 28th week. However, severe pain is not a typical symptom. The location of the placenta can be determined through scans.
Placenta accreta happens when the placenta attaches to the myometrium instead of just the endometrium. This can lead to failure of the placenta to separate after delivery, resulting in significant postpartum bleeding.
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This question is part of the following fields:
- Obstetrics
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Question 2
Incorrect
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A 55-year-old male patient, four hours post total thyroidectomy, presents with acute shortness of breath and visible distress. Upon examination, the patient exhibits stridor and a large haematoma is discovered deep to the wound. What is the most appropriate immediate management for this patient?
Your Answer: Supplementary oxygen through a mask
Correct Answer: Immediate removal of the skin clips and deep sutures at the bedside
Explanation:Immediate Management of Stridor Following Thyroidectomy
An unrecognised or rapidly expanding haematoma can lead to airway compromise and asphyxiation after thyroidectomy. Therefore, it is crucial to take immediate action in case of stridor. The first step is to remove the skin clips and sutures to relieve pressure on the trachea. Failure to do so can result in tracheal occlusion and death. It is important to act quickly and avoid delays in getting the patient to the operating theatre, as this may lead to an avoidable death.
Once the neck has been opened on the ward, the patient should be transferred to the operating theatre for a thorough examination of the neck and meticulous control of bleeding before closing the neck wound. This is necessary to ensure that any bleeding is properly managed and the wound is closed without any complications. By following these steps, the risk of airway compromise and asphyxiation can be minimized, and the patient can recover safely from the surgery.
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This question is part of the following fields:
- Surgery
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Question 3
Incorrect
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A 28-year-old builder comes to the GP complaining of large itchy silvery white scaly patches on his elbows and knees. He has no history of skin problems, but his father had psoriasis. What is the most suitable initial treatment to prescribe?
Your Answer: Topical coal tar
Correct Answer: Topical steroid and topical calcipotriol
Explanation:Topical Treatments for Chronic Plaque Psoriasis: NICE Recommendations
Chronic plaque psoriasis is a common skin condition that can be managed with topical treatments. The National Institute for Health and Care Excellence (NICE) recommends a stepwise approach to treatment, with different options depending on the severity of the condition and the response to previous therapies.
First-line treatment for chronic plaque psoriasis is a potent corticosteroid applied once daily, combined with a vitamin D analogue, for up to 4 weeks. This combination therapy has been shown to be effective in reducing inflammation and improving symptoms.
If there is no improvement with both steroid and calcipotriol after 8 weeks, topical calcipotriol alone can be used as a second-line management option. However, it is insufficient to prescribe alone as a first-line treatment.
Topical steroid alone is a third-line management option for psoriasis if there is no improvement after 8-12 weeks. This is because long-term use of topical steroids can have side effects such as skin thinning and increased risk of infection.
Short-acting dithranol could be used as a fourth-line option, but not as initial management. Topical coal tar is also part of third-line management for psoriasis.
In summary, the NICE recommendations for topical treatments for chronic plaque psoriasis involve a stepwise approach, with combination therapy as the first-line option and other treatments used if there is no improvement or if side effects occur. It is important to work with a healthcare provider to find the most effective and safe treatment plan for each individual.
NICE Recommendations for Topical Treatments for Chronic Plaque Psoriasis
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This question is part of the following fields:
- Dermatology
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Question 4
Incorrect
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A patient 16/40 gestation contacts your clinic via phone. This is her first pregnancy and she is worried about not experiencing any foetal movements yet. You provide reassurance that foetal movements can be felt between 16-20 weeks gestation in first pregnancies. When should further investigation be considered if no foetal movements are felt by this time?
Your Answer: 20 weeks
Correct Answer: 24 weeks
Explanation:According to RCOG guidelines, women typically feel fetal movements by 20 weeks of gestation. However, if no movements are felt by 24 weeks, it is recommended to refer the woman to a maternal fetal medicine unit to assess for potential neuromuscular conditions.
Understanding Reduced Fetal Movements
Introduction:
Reduced fetal movements can indicate fetal distress and are a response to chronic hypoxia in utero. This can lead to stillbirth and fetal growth restriction. It is believed that placental insufficiency may also be linked to reduced fetal movements.Physiology:
Quickening is the first onset of fetal movements, which usually occurs between 18-20 weeks gestation and increases until 32 weeks gestation. Multiparous women may experience fetal movements sooner. Fetal movements should not reduce towards the end of pregnancy. There is no established definition for what constitutes reduced fetal movements, but less than 10 movements within 2 hours (in pregnancies past 28 weeks gestation) is an indication for further assessment.Epidemiology:
Reduced fetal movements affect up to 15% of pregnancies, with 3-5% of pregnant women having recurrent presentations with RFM. Fetal movements should be established by 24 weeks gestation.Risk factors for reduced fetal movements:
Posture, distraction, placental position, medication, fetal position, body habitus, amniotic fluid volume, and fetal size can all affect fetal movement awareness.Investigations:
Fetal movements are usually based on maternal perception, but can also be objectively assessed using handheld Doppler or ultrasonography. Investigations are dependent on gestation at onset of RFM. If concern remains, despite normal CTG, urgent (within 24 hours) ultrasound can be used.Prognosis:
Reduced fetal movements can represent fetal distress, but in 70% of pregnancies with a single episode of reduced fetal movement, there is no onward complication. However, between 40-55% of women who suffer from stillbirth experience reduced fetal movements prior to diagnosis. Recurrent RFM requires further investigations to consider structural or genetic fetal abnormalities. -
This question is part of the following fields:
- Obstetrics
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Question 5
Correct
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A 50-year-old man undergoes a workplace medical and has an ECG performed. What is the electrophysiological basis of the T wave on a typical ECG?
Your Answer: Ventricular repolarisation
Explanation:The T wave on an ECG indicates ventricular repolarisation and is typically positive in all leads except AvR and V1. Abnormal T wave findings may suggest strain, bundle branch block, ischaemia/infarction, hyperkalaemia, Prinzmetal angina, or early STEMI. The P wave represents atrial depolarisation, while atrial repolarisation is hidden by the QRS complex. The PR interval is determined by the duration of conduction delay through the atrioventricular node. Finally, the QRS complex indicates ventricular depolarisation.
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This question is part of the following fields:
- Cardiology
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Question 6
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A 32-year-old male patient arrives at the emergency department complaining of left testicular pain that has been ongoing for three days. He reports a burning sensation during urination but denies any urethral discharge. The patient is sexually active and has no history of sexually transmitted diseases, trauma, or similar episodes. Upon examination, the left testicle is found to be swollen and tender. What is the most probable organism responsible for this condition?
Your Answer: Chlamydia trachomatis
Explanation:Acute epididymo-orchitis cases are commonly caused by enteric organisms (such as Escherichia coli or Enterococcus faecalis) in men aged 35 years and above. This type of infection is often linked to urinary tract infections and may be related to structural issues in the urinary tract.
Epididymo-orchitis is a condition where the epididymis and/or testes become infected, leading to pain and swelling. It is commonly caused by infections spreading from the genital tract or bladder, with Chlamydia trachomatis and Neisseria gonorrhoeae being the usual culprits in sexually active younger adults, while E. coli is more commonly seen in older adults with a low-risk sexual history. Symptoms include unilateral testicular pain and swelling, with urethral discharge sometimes present. Testicular torsion, which can cause ischaemia of the testicle, is an important differential diagnosis and needs to be excluded urgently, especially in younger patients with severe pain and an acute onset.
Investigations are guided by the patient’s age, with sexually transmitted infections being assessed in younger adults and a mid-stream urine (MSU) being sent for microscopy and culture in older adults with a low-risk sexual history. Management guidelines from the British Association for Sexual Health and HIV (BASHH) recommend ceftriaxone 500 mg intramuscularly as a single dose, plus doxycycline 100 mg orally twice daily for 10-14 days if the organism causing the infection is unknown. Further investigations are recommended after treatment to rule out any underlying structural abnormalities.
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This question is part of the following fields:
- Surgery
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Question 7
Correct
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What role does cholecystokinin play in the body?
Your Answer: Stimulates gallbladder contraction
Explanation:Hormones and their Effects on Digestion
Cholecystokinin is a hormone that helps neutralize partially digested food by causing the gallbladder to contract and the pancreas to release alkaline pancreatic fluid. This helps to counteract the acidity of the food and aids in digestion. Gastrin, on the other hand, increases the production of stomach acid and speeds up the rate at which food is emptied from the stomach. This hormone is important for breaking down food and preparing it for further digestion. Secretin, another hormone, works to reduce the production of stomach acid, which can be helpful in preventing acid reflux and other digestive issues. Finally, leptin is a hormone that helps to suppress appetite, which can be useful in maintaining a healthy weight and preventing overeating. By the effects of these hormones on digestion, we can better understand how our bodies process food and maintain overall health.
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This question is part of the following fields:
- Clinical Sciences
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Question 8
Incorrect
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You are on an anaesthetic attachment in Day Surgery and are reviewing patients preoperatively. You review a 25-year-old man who is having an elective knee arthroscopy. He has not had a general anaesthetic before, but he tells you that his father had problems following suxamethonium anaesthetic, and he had to have a muscle sample sent off to find out the cause, which came back positive. His father is still alive.
Which of these is his father’s most likely diagnosis?Your Answer: Prolonged paralysis
Correct Answer: Malignant hyperthermia
Explanation:Common Complications of Suxamethonium Administration
Suxamethonium is a commonly used muscle relaxant during anesthesia. However, it can lead to several complications, including malignant hyperthermia, raised intraocular pressure, anaphylaxis, prolonged paralysis, and hyperkalemia.
Malignant hyperthermia is a genetic myopathy that causes a hypermetabolic state, leading to circulatory collapse and death. Treatment involves recognition, removal of stimuli, continuation of anesthesia with intravenous agents, cooling, and administration of dantrolene.
Raised intraocular pressure and intracranial pressure can occur after suxamethonium administration, but this is only relevant to patients with ocular and intracranial diseases.
Anaphylaxis is a severe allergic reaction that can occur after suxamethonium administration. Diagnosis is based on signs and symptoms.
Prolonged paralysis can occur in patients with abnormal pseudocholinesterase level or function, which is generally due to inherited genetic alleles. Diagnosis is by blood test.
Hyperkalemia can occur after suxamethonium administration, especially in patients with severe muscle damage or recent burns. Diagnosis does not require a muscle biopsy.
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This question is part of the following fields:
- Anaesthetics & ITU
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Question 9
Incorrect
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A 28-year-old man visits his General Practitioner on the advice of the Community Psychiatric Nurse. He has been experiencing a fever and sore throat lately. He is currently on clozapine for treatment-resistant schizophrenia.
What would be the most crucial investigation to conduct, considering his recent symptoms?Your Answer: Urea and electrolytes
Correct Answer: Full blood count
Explanation:When treating patients with clozapine, it is important to monitor for agranulocytosis, a rare but potentially fatal side-effect. Patients should report flu-like symptoms and undergo regular blood tests. In this case, the patient’s sore throat and fever may indicate agranulocytosis, so a full blood count is necessary. While an ECG should be done before starting antipsychotic treatment, it is not the most important test in this scenario. Blood glucose should be monitored to exclude organic causes and hyperglycemia caused by antipsychotics. Liver function and urea/electrolytes should also be monitored regularly, but are not the most important tests to conduct immediately in this case.
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This question is part of the following fields:
- Psychiatry
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Question 10
Correct
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A 22-year-old gang member was brought to the Emergency Department with a knife still in his abdomen after being stabbed in the left upper quadrant. A CT scan revealed that the tip of the knife had punctured the superior border of the greater omentum at the junction of the body and pyloric antrum of the stomach.
What is the most likely direct branch artery that has been severed by the knife?Your Answer: Gastroduodenal artery
Explanation:The knife likely cut the right gastro-omental artery, which is a branch of the gastroduodenal artery. This artery runs along the greater curvature of the stomach within the superior border of the greater omentum and anastomoses with the left gastro-omental artery, a branch of the splenic artery. The coeliac trunk, which supplies blood to the foregut, is not related to the greater omentum but to the lesser omentum. The hepatic artery proper, one of the terminal branches of the common hepatic artery, courses towards the liver in the free edge of the lesser omentum. The splenic artery, a tortuous branch of the coeliac trunk, supplies blood to the spleen and gives off the left gastro-omental artery. The short gastric artery, on the other hand, supplies blood to the fundus of the stomach and branches off the splenic artery.
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This question is part of the following fields:
- Gastroenterology
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