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Question 1
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An 80-year-old man arrives at the Emergency Department after experiencing a 3-hour episode of right facial weakness with forehead sparing. He has a medical history of polymyalgia rheumatica and haemophilia B and takes low dose prednisolone as his only regular medication. He has been a smoker for the past 20 years, consuming 20 cigarettes a day. Upon examination, he reports that his neurological symptoms have resolved 30 minutes ago. What is the best initial course of action?
Your Answer: Admit and arrange a CT head
Explanation:If a patient with a bleeding disorder or on anticoagulants such as warfarin or DOACs is suspected of having a TIA, immediate admission for imaging is necessary to rule out a hemorrhage. In this case, the patient’s age, sex, smoking history, and bleeding disorder increase the likelihood of a TIA. The patient’s history of polymyalgia rheumatica and low dose prednisolone management are not relevant to the diagnosis or management of TIA.
Admission and a CT head are necessary due to the patient’s history of haemophilia B, which increases the risk of hemorrhagic causes of stroke-like symptoms. Aspirin should not be given immediately as it may worsen bleeding in patients with bleeding disorders or on anticoagulants. Reassuring and managing as an outpatient is not appropriate for either hemorrhagic or ischemic causes of TIA, both of which are possible in this case. Thrombectomy is not the appropriate management for this patient as he is at high risk of hemorrhagic stroke, and imaging is necessary to rule out a bleed.
A transient ischaemic attack (TIA) is a brief period of neurological deficit caused by a vascular issue, lasting less than an hour. The original definition of a TIA was based on time, but it is now recognized that even short periods of ischaemia can result in pathological changes to the brain. Therefore, a new ’tissue-based’ definition is now used. The clinical features of a TIA are similar to those of a stroke, but the symptoms resolve within an hour. Possible features include unilateral weakness or sensory loss, aphasia or dysarthria, ataxia, vertigo, or loss of balance, visual problems, and sudden transient loss of vision in one eye (amaurosis fugax).
NICE recommends immediate antithrombotic therapy with aspirin 300 mg unless the patient has a bleeding disorder or is taking an anticoagulant. If the patient has had more than one TIA or has a suspected cardioembolic source or severe carotid stenosis, specialist review is necessary. Urgent assessment is required within 24 hours for patients who have had a suspected TIA in the last 7 days. Referral for specialist assessment is necessary as soon as possible within 7 days for patients who have had a suspected TIA more than a week previously. Neuroimaging and carotid imaging are recommended, and antithrombotic therapy is necessary. Carotid artery endarterectomy should only be considered if the carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.
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This question is part of the following fields:
- Neurology
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Question 2
Correct
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A 30-year-old male presents with a 3-month history of numbness in his right hand. During examination, you observe a loss of sensation in the palmar and dorsal regions of the 5th digit, while the sensation of the forearm remains intact. What is the probable diagnosis?
Your Answer: Cubital tunnel syndrome
Explanation:The correct answer is cubital tunnel syndrome. This condition is characterized by ulnar nerve neuropathy, which affects the sensory innervation of the palmar and dorsal aspects of 1.5 fingers medially. It can also cause wasting and paralysis of intrinsic hand muscles (except lateral two lumbricals) and the hypothenar muscles. To test for ulnar neuropathy, Froment’s test can be used to assess the function of the adductor pollicis muscle.
Axillary nerve neuropathy is not the correct answer. The axillary nerve has both motor and sensory functions, innervating the deltoid and teres minor muscles, as well as providing sensory innervation to the skin over the lower two-thirds of the posterior part of the deltoid and the long head of the triceps brachii.
C8/T1 radiculopathy is also not the correct answer. While it can mimic ulnar nerve neuropathy, the preserved sensation of the forearm would suggest cubital tunnel syndrome instead. The medial antebrachial cutaneous nerve (C8 and T1) provides sensation to the medial forearm, not the ulnar nerve.
Carpal tunnel syndrome is also not the correct answer. This condition is caused by median nerve dysfunction, resulting in sensory loss over the lateral 3.5 digits and loss of motor function to the flexor muscles of the forearm and hand, as well as those responsible for thumb movement.
The Ulnar Nerve: Overview, Branches, and Patterns of Damage
The ulnar nerve is a nerve that arises from the medial cord of the brachial plexus, specifically from the C8 and T1 spinal nerves. It provides motor innervation to several muscles in the hand, including the medial two lumbricals, adductor pollicis, interossei, hypothenar muscles (abductor digiti minimi, flexor digiti minimi), and flexor carpi ulnaris. It also provides sensory innervation to the medial 1 1/2 fingers on both the palmar and dorsal aspects.
The ulnar nerve travels through the posteromedial aspect of the upper arm before entering the palm of the hand via the Guyon’s canal, which is located superficial to the flexor retinaculum and lateral to the pisiform bone. The nerve has several branches, including the muscular branch, palmar cutaneous branch, dorsal cutaneous branch, superficial branch, and deep branch. These branches supply various muscles and skin areas in the hand.
Damage to the ulnar nerve can occur at the wrist or elbow. When damaged at the wrist, it can result in a claw hand deformity, which involves hyperextension of the metacarpophalangeal joints and flexion at the distal and proximal interphalangeal joints of the 4th and 5th digits. There may also be wasting and paralysis of intrinsic hand muscles (except lateral two lumbricals) and hypothenar muscles, as well as sensory loss to the medial 1 1/2 fingers. When damaged at the elbow, the same symptoms may occur, but with the addition of radial deviation of the wrist. It is important to note that in distal lesions, the clawing may be more severe, which is known as the ulnar paradox.
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This question is part of the following fields:
- Neurology
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Question 3
Correct
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A 28-year-old woman presents with a history of headache every day for the past three months. She describes that it is worse in the evening. There are no associated symptoms.
Which of the following is the most likely diagnosis?Your Answer: Tension headache
Explanation:Understanding Different Types of Headaches
Headaches are a common ailment that can be caused by a variety of factors. Here are some of the different types of headaches and their distinguishing characteristics:
1. Tension headache: This type of headache is often described as a tight, band-like pain across the forehead and is more common in females. It typically worsens towards the end of the day but does not interfere with daily activities. Chronic tension headaches occur at least 15 days of the month for at least three months.
2. Brain tumour: Headaches caused by space-occupying lesions tend to be worse in the morning and when bending forward. They may also be associated with vomiting.
3. Cluster headache: This type of headache is more common in men and presents with intense pain localized around one eye, which can last for a few minutes up to three hours. There may also be simultaneous lacrimation and nasal congestion. Symptoms occur every day or multiple times every day for a number of weeks, followed by a symptom-free period lasting months or even years.
4. Giant cell arteritis: This type of headache typically occurs in those aged over 50 years and is characterized by an abrupt onset and recurrent daily headache. Common symptoms include scalp pain/tenderness, jaw claudication, visual disturbances, fever, weight loss, and lethargy. A diagnosis of GCA requires three out of five specific criteria.
5. Migraine: Migraines can occur daily but are typically accompanied by associated features such as nausea or vomiting, photophobia, or phonophobia. The International Headache Society criteria for migraine without aura include at least five attacks fulfilling specific criteria.
Understanding the different types of headaches and their characteristics can help in proper diagnosis and treatment.
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This question is part of the following fields:
- Neurology
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Question 4
Correct
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A 58-year-old man presents to the clinic with a 10-day history of intermittent stabbing pains over his left cheek. He reports that the pain worsens when he goes outside into the cold air and when he washes his face in the morning. Upon examination, there are no notable findings.
What is the probable diagnosis?Your Answer: Trigeminal neuralgia
Explanation:Differential Diagnosis for Facial Pain: Trigeminal Neuralgia, Cluster Headache, Acute Sinusitis, Bell’s Palsy, and Temporal Arteritis
Facial pain can be caused by a variety of conditions, and it is important to differentiate between them in order to provide appropriate treatment. Here are five possible diagnoses for facial pain:
1. Trigeminal Neuralgia: This condition causes sudden, sharp shooting pain in the distribution of one or more branches of the trigeminal nerve. The pain is often triggered by light touch, eating, talking, or exposure to the cold.
2. Cluster Headache: Recurrent attacks of severe pain around the eye or temporal region, which tend to occur at the same time each day, eg on waking.
3. Acute Sinusitis: This condition presents with nasal blockage or discharge, facial pain or pressure, and sometimes a reduction or loss of smell.
4. Bell’s Palsy: This condition typically presents with facial weakness, pain behind the ear, earache, aural fullness, or facial palsy.
5. Temporal Arteritis: This condition presents with a localised, unilateral headache around the temporal region, tenderness over the area with redness and pulsation.
It is important to consider all of these diagnoses when evaluating a patient with facial pain, and to provide appropriate management based on the specific condition.
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This question is part of the following fields:
- Neurology
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Question 5
Incorrect
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A 32-year-old man has, over the course of two days, developed weakness and numbness in his arms. He has no previous medical history of note apart from treated asthma. He smokes cigarettes ‘occasionally’. His father died of a ‘heart problem’ in his early 50s. On examination, the cranial nerves and lower limbs are normal to examination. There is an increased tone in his arms bilaterally, with brisk reflexes. Power is reduced to three-fifths in all modalities above the elbows. Vibration and joint position sense are normal.
Which of the following is the most likely diagnosis?
Your Answer: Motor neurone disease (MND)
Correct Answer: Anterior spinal artery thrombosis
Explanation:The anterior spinal artery supplies the anterior two-thirds of the spinal cord, causing anterior cord syndrome when there is ischaemia/infarct. This results in complete motor paralysis below the lesion, loss of pain/temperature sensation at and below the lesion, and some autonomic and bowel/bladder dysfunction. A lesion at the conus medullaris presents with back pain, saddle anaesthesia, urinary retention, faecal incontinence, lower limb weakness and numbness, and mixed UMN and LMN palsies. Friedreich’s ataxia presents with a slowly progressive gait ataxia, while MND is slowly progressive with combined UMN and LMN signs. Subacute combined degeneration of the spinal cord is due to vitamin B12 deficiency and has a subacute or gradual onset with degeneration of the dorsal and lateral columns of the spinal cord. Syndrome and lesion affected presentations are summarized in a table.
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This question is part of the following fields:
- Neurology
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Question 6
Correct
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A 62-year-old man is being evaluated for cognitive impairment with concerns about a movement disorder. As part of his evaluation, he undergoes cross-sectional brain imaging and a dopamine Transporter Scan (DaTscan). The results show reduced dopaminergic activity in the substantia nigra bilaterally on the DaTscan and age-related changes on the MRI head. What is the most probable diagnosis?
Your Answer: Parkinson’s disease
Explanation:Differentiating Neurodegenerative Disorders: A Comparison of Parkinson’s Disease, Alzheimer’s Dementia, Frontotemporal Dementia, Huntington’s Disease, and Vascular Dementia
Neurodegenerative disorders can be difficult to differentiate due to overlapping symptoms. Parkinson’s disease, for example, involves the death of neurones in the substantia nigra and is often confirmed through the use of DaTscan, which visualises dopamine transporter levels in the brain. Dementia is a common complication of Parkinson’s disease, affecting 20-40% of patients and causing cognitive, mood, and behavioural changes.
Alzheimer’s dementia, on the other hand, is characterised by cortical atrophy visible on CT and MRI scans and is not typically associated with movement disorders. Frontotemporal dementia primarily affects behaviour and language and is also not typically associated with movement disorders.
Huntington’s disease is another basal ganglia disorder, but it primarily involves cell loss in the striatum, leading to chorea – uncontrollable limb movements. CT and MRI scans can show loss of striatal volume in moderate-to-severe cases, but early scans may appear normal.
Vascular dementia, the second most common cause of dementia after Alzheimer’s, often has a history of cerebral vascular disease and is not typically associated with movement disorders. Understanding the unique characteristics of each neurodegenerative disorder is crucial for accurate diagnosis and treatment.
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This question is part of the following fields:
- Neurology
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Question 7
Correct
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A 63-year-old man presents to you after experiencing his first TIA. He states that he is typically in good health and was surprised to learn that he had suffered a 'mini stroke.' He is eager to resume his normal daily routine and is curious about when he can safely operate his vehicle once more.
What guidance would you offer him?Your Answer: Can start driving if symptom free after 1 month - no need to inform the DVLA
Explanation:Group 1 drivers do not need to inform the DVLA and can resume driving after being symptom-free for one month following a single TIA.
The DVLA has guidelines for drivers with neurological disorders. Those with epilepsy/seizures must not drive and must inform the DVLA. The length of time off driving varies depending on the type and frequency of seizures. Those with syncope may need time off driving depending on the cause and number of episodes. Those with other conditions such as stroke, craniotomy, pituitary tumor, narcolepsy/cataplexy, and chronic neurological disorders should inform the DVLA and may need time off driving.
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This question is part of the following fields:
- Neurology
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Question 8
Correct
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A 35-year-old woman visits her GP complaining of a headache that she describes as worsening over the past three weeks. She reports that the headache wakes her during the night, and is worse when she coughs.
Which of the following is the most likely diagnosis?
Your Answer: Brain tumour
Explanation:The patient’s symptoms suggest a headache caused by increased pressure within the skull, which is often associated with a space-occupying lesion such as a brain tumor. This type of headache is typically worse in the morning and aggravated by bending forward, coughing, or sneezing. As the tumor grows, other symptoms such as vomiting, seizures, and neurological deficits may develop. Brain tumors can be primary or metastatic, with the most common types being astrocytoma, glioblastoma, oligodendroglioma, ependymoma, meningioma, and primary CNS lymphoma.
The patient’s history does not support a diagnosis of giant cell arteritis, which typically affects individuals over 50 years old and presents with an abrupt-onset headache, scalp tenderness, jaw pain, visual disturbances, and constitutional symptoms such as fever and weight loss. The diagnosis of GCA requires specific criteria, including age at onset, new headache, temporal artery abnormality, elevated erythrocyte sedimentation rate, and abnormal artery biopsy.
The patient’s symptoms are also not consistent with cluster headaches, which typically affect younger males and present with severe, unilateral pain around the eye, accompanied by lacrimation and nasal congestion. Cluster headaches have a circadian pattern and occur in episodes, followed by symptom-free periods.
Migraine is another type of headache that is not likely in this case, as the patient’s symptoms do not fit the typical pattern of unilateral, pulsating pain lasting 4-72 hours, accompanied by nausea/vomiting and photophobia.
Finally, subarachnoid hemorrhage is a medical emergency that presents with a sudden, severe headache, often described as the worst headache of one’s life, along with other symptoms such as vomiting, loss of consciousness, seizures, and neurological deficits. However, the patient’s headache has been progressing over weeks, which is not consistent with SAH.
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This question is part of the following fields:
- Neurology
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Question 9
Incorrect
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A 35-year-old woman presents to her General Practitioner (GP) after experiencing daily headaches for the past week. She is usually healthy but drinks three cups of coffee a day. She describes sudden onset of severe, unilateral periorbital pain and tearing of the eye. The attacks last around 30 minutes and have all occurred in the late afternoon.
What is the most suitable treatment to be administered to this patient during an acute episode of headache?
Select the MOST appropriate treatment from the options below.Your Answer: Verapamil
Correct Answer: Intranasal sumatriptan
Explanation:Treatment options for Cluster Headaches
Cluster headaches are a type of headache that is more common in men and presents with intense pain localized around one eye, accompanied by lacrimation and nasal congestion. The pain can last for a few minutes up to three hours and occurs every day for a number of weeks, followed by a symptom-free period. Here are some treatment options for cluster headaches:
Intranasal Sumatriptan: People over the age of 18 with acute bouts of confirmed cluster headache may be given a subcutaneous or nasal triptan for acute attacks.
Verapamil: Verapamil may be prescribed as a preventative treatment for cluster headaches but is not used during an acute attack. It is usually only prescribed following a discussion with a neurologist or a GP with a special interest in headaches.
Carbamazepine: Carbamazepine is used in the treatment of trigeminal neuralgia, which presents with sudden attacks of severe, shooting unilateral facial pain that feels like an ‘electric shock’. However, for cluster headaches, it is not the first-line treatment.
Codeine: Patients with cluster headaches should not be offered paracetamol, non-steroidal anti-inflammatory drugs or opioids as acute treatment, as they are too slow to take effect.
Short-burst oxygen therapy (home oxygen): Short-burst oxygen therapy (12–15 l/min via a non-rebreathe mask) can be prescribed to reduce the length of an attack, unless it is contraindicated. However, home oxygen is contraindicated for smokers due to the risk of fire.
In conclusion, cluster headaches can be debilitating, but there are various treatment options available to manage the symptoms. It is important to consult with a healthcare professional to determine the best course of treatment for each individual.
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This question is part of the following fields:
- Neurology
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Question 10
Correct
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A 62-year-old man has been referred due to a tremor and bradykinesia, leading to a diagnosis of Parkinson's disease. These symptoms are now interfering with his work as an accountant and overall quality of life. What initial treatment is he likely to receive?
Your Answer: Levodopa
Explanation:Patients with newly diagnosed Parkinson’s who experience motor symptoms that negatively impact their quality of life should be provided with levodopa.
Management of Parkinson’s Disease: Medications and Considerations
Parkinson’s disease is a complex condition that requires specialized expertise in movement disorders for diagnosis and management. However, all healthcare professionals should be familiar with the medications used to treat Parkinson’s disease due to its prevalence. The National Institute for Health and Care Excellence (NICE) published guidelines in 2017 to aid in the management of Parkinson’s disease.
For first-line treatment, levodopa is recommended if motor symptoms are affecting the patient’s quality of life. If motor symptoms are not affecting the patient’s quality of life, dopamine agonists (non-ergot derived), levodopa, or monoamine oxidase B (MAO-B) inhibitors may be used. NICE provides tables to aid in decision-making regarding the use of these medications, taking into account their effects on motor symptoms, activities of daily living, motor complications, and adverse events.
If a patient continues to have symptoms despite optimal levodopa treatment or has developed dyskinesia, NICE recommends the addition of a dopamine agonist, MAO-B inhibitor, or catechol-O-methyl transferase (COMT) inhibitor as an adjunct. Other considerations in Parkinson’s disease management include the risk of acute akinesia or neuroleptic malignant syndrome if medication is not taken or absorbed, the potential for impulse control disorders with dopaminergic therapy, and the need to adjust medication if excessive daytime sleepiness or orthostatic hypotension develops.
Specific medications used in Parkinson’s disease management include levodopa, dopamine receptor agonists, MAO-B inhibitors, amantadine, COMT inhibitors, and antimuscarinics. Each medication has its own set of benefits and potential adverse effects, which should be carefully considered when selecting a treatment plan. Overall, the management of Parkinson’s disease requires a comprehensive approach that takes into account the individual needs and circumstances of each patient.
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This question is part of the following fields:
- Neurology
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Question 11
Incorrect
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A 75-year-old man is being evaluated after experiencing an ischemic stroke. He has a history of being unable to tolerate clopidogrel. What is the best treatment option to decrease his risk of having another stroke?
Your Answer: Aspirin + dipyridamole. Stop dipyridamole after 2 years
Correct Answer: Aspirin + dipyridamole lifelong
Explanation:Lifelong use of aspirin and dipyridamole. Age: 55.
The Royal College of Physicians (RCP) and NICE have published guidelines on the diagnosis and management of patients following a stroke. The management of acute stroke includes maintaining normal levels of blood glucose, hydration, oxygen saturation, and temperature. Blood pressure should not be lowered in the acute phase unless there are complications. Aspirin should be given as soon as possible if a haemorrhagic stroke has been excluded. Anticoagulants should not be started until brain imaging has excluded haemorrhage. Thrombolysis with alteplase should only be given if administered within 4.5 hours of onset of stroke symptoms and haemorrhage has been definitively excluded. Mechanical thrombectomy is a new treatment option for patients with an acute ischaemic stroke. NICE recommends thrombectomy for people who have acute ischaemic stroke and confirmed occlusion of the proximal anterior circulation demonstrated by computed tomographic angiography or magnetic resonance angiography. Secondary prevention includes the use of clopidogrel and dipyridamole. Carotid artery endarterectomy should only be considered if carotid stenosis is greater than 70% according to ECST criteria or greater than 50% according to NASCET criteria.
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This question is part of the following fields:
- Neurology
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Question 12
Incorrect
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A 45-year-old woman with permanent atrial fibrillation is taking warfarin. She has experienced two unprovoked tonic-clonic seizures witnessed by her husband. CT scan of the brain reveals diffuse ischaemic changes in the white matter. The specialist recommends starting her on an anti-epileptic medication.
What would be the most suitable anti-epileptic drug to prescribe for this patient who is also on warfarin therapy?Your Answer: Carbamazepine
Correct Answer: Lamotrigine
Explanation:Considerations for Anti-Epileptic Drugs and Warfarin Interaction
When prescribing anti-epileptic drugs to patients taking warfarin, it is important to consider potential drug interactions. Lamotrigine is a safe option as it has no effect on liver enzymes and does not interact significantly with warfarin. However, other anti-epileptic drugs such as phenytoin, carbamazepine, primidone, and phenobarbital can affect warfarin metabolism and effectiveness. Phenytoin and warfarin have a complex interaction that may initially increase the anticoagulant effect of warfarin, then decrease it with continued phenytoin use. Warfarin also increases the level of phenytoin. Carbamazepine is a P450 enzyme inducer, which decreases the level and effect of warfarin. Phenobarbital and primidone are also enzyme inducers that decrease warfarin effectiveness. Sodium valproate, on the other hand, is a liver enzyme inhibitor. Therefore, when considering anti-epileptic drugs for patients taking warfarin, it is important to weigh the potential drug interactions and choose the appropriate medication.
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This question is part of the following fields:
- Neurology
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Question 13
Correct
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A 25-year-old man with difficult to control epilepsy is being evaluated by a surgeon, four months after switching his antiepileptic medication. Despite being seizure-free, he has gained 5 kg in weight since his last check-up. Which antiepileptic drug is commonly linked to weight gain?
Your Answer: Sodium valproate
Explanation:Weight gain can be a side effect of taking sodium valproate.
Sodium Valproate: Uses and Adverse Effects
Sodium valproate is a medication commonly used to manage epilepsy, particularly for generalised seizures. Its mechanism of action involves increasing the activity of GABA in the brain. However, the use of sodium valproate during pregnancy is strongly discouraged due to its teratogenic effects, which can lead to neural tube defects and neurodevelopmental delays in children. Women of childbearing age should only use this medication if it is absolutely necessary and under the guidance of a specialist neurological or psychiatric advisor.
Aside from its teratogenic effects, sodium valproate can also inhibit P450 enzymes, leading to gastrointestinal issues such as nausea, increased appetite, and weight gain. Other adverse effects include alopecia, ataxia, tremors, hepatotoxicity, pancreatitis, thrombocytopenia, hyponatremia, and hyperammonemic encephalopathy. In cases where hyperammonemic encephalopathy develops, L-carnitine may be used as a treatment option.
Overall, while sodium valproate can be an effective medication for managing epilepsy, its use should be carefully considered and monitored due to its potential adverse effects, particularly during pregnancy.
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This question is part of the following fields:
- Neurology
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Question 14
Correct
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A 25-year-old man complains of recurring headaches. He experiences these headaches about 2-3 times per month. The headaches are severe and occur on the right side of his head. They are throbbing in nature and last for approximately 8-12 hours. During these episodes, he finds it difficult to continue working and prefers to rest in a dark room. Paracetamol has not been effective in relieving his symptoms. What medication should be prescribed to decrease the frequency of these headaches?
Your Answer: Propranolol
Explanation:For the acute treatment of migraine, a combination of triptan and NSAID or triptan and paracetamol is recommended. Prophylaxis options include topiramate or propranolol. In this case, the patient’s history is consistent with migraine and prophylaxis with propranolol or topiramate should be considered. Zolmitriptan is not indicated for prophylaxis, but rather for acute treatment of migraine.
Managing Migraines: Guidelines and Treatment Options
Migraines can be debilitating and affect a significant portion of the population. To manage migraines, it is important to understand the different treatment options available. According to the National Institute for Health and Care Excellence (NICE) guidelines, acute treatment for migraines involves a combination of an oral triptan and an NSAID or paracetamol. For young people aged 12-17 years, a nasal triptan may be preferred. If these measures are not effective, non-oral preparations of metoclopramide or prochlorperazine may be considered, along with a non-oral NSAID or triptan.
Prophylaxis should be given if patients are experiencing two or more attacks per month. NICE recommends topiramate or propranolol, depending on the patient’s preference, comorbidities, and risk of adverse events. Propranolol is preferred in women of childbearing age as topiramate may be teratogenic and reduce the effectiveness of hormonal contraceptives. Acupuncture and riboflavin may also be effective in reducing migraine frequency and intensity for some people. For women with predictable menstrual migraines, frovatriptan or zolmitriptan may be recommended as a type of mini-prophylaxis.
Specialists may consider other treatment options, such as candesartan or monoclonal antibodies directed against the calcitonin gene-related peptide (CGRP) receptor, like erenumab. However, pizotifen is no longer recommended due to common adverse effects like weight gain and drowsiness. It is important to exercise caution with young patients as acute dystonic reactions may develop. By following these guidelines and considering various treatment options, migraines can be effectively managed.
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This question is part of the following fields:
- Neurology
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Question 15
Incorrect
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A 50-year-old alcoholic patient begins to have a seizure in the waiting area. You quickly position him in the recovery stance and provide oxygen. However, after 5 minutes, the seizure persists. What is the best medication to give in this situation?
Your Answer: Rectal diazepam 5 mg
Correct Answer: Rectal diazepam 10 mg
Explanation:Managing Seizures: Basic Steps and Medication Dosages
Seizures can be a frightening experience for both the patient and those around them. While most seizures will stop on their own, prolonged seizures can be life-threatening. Therefore, it is important to know how to manage seizures in case of an emergency.
The first step in managing a seizure is to check the patient’s airway and provide oxygen if necessary. It is also important to place the patient in the recovery position to prevent choking or aspiration. If the seizure is prolonged, benzodiazepines may be necessary. The recommended dose for rectal diazepam varies depending on the patient’s age and condition. For neonates, the dose is 1.25-2.5 mg, while for adults, it is 10-20 mg (max. 30 mg). The dose may be repeated once after 10-15 minutes if necessary.
Another medication that may be used is midazolam oromucosal solution. However, it is important to note that this medication is unlicensed for use in neonates and children under 2 months old. The recommended dose for midazolam oromucosal solution also varies depending on the patient’s age and condition. For example, the dose for a child aged 1-4 years is 5 mg, while for an adult, it is 10 mg.
In summary, managing seizures involves basic steps such as checking the airway and placing the patient in the recovery position. If the seizure is prolonged, benzodiazepines such as rectal diazepam or midazolam oromucosal solution may be necessary. It is important to follow the recommended dosage based on the patient’s age and condition.
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This question is part of the following fields:
- Neurology
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Question 16
Incorrect
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An 85-year-old woman with hypercholesterolaemia, ischaemic heart disease and hypertension complains to her General Practitioner of tingling and numbness in both feet that has been worsening over a period of six months.
Examination reveals that she has an altered pinprick sensation over both feet and absent ankle reflexes. Her urea and electrolyte levels are normal. Her blood glucose is normal and there is no history of alcohol ingestion. She is, however, taking a number of medications for the secondary presentation of her vascular problems.
Which of the following medications is most likely to have caused her symptoms?
Select the SINGLE most appropriate medication from the list below.Your Answer: Spironolactone
Correct Answer: Simvastatin
Explanation:Medication Analysis for Peripheral Neuropathy: Simvastatin, Bendroflumethiazide, Clopidogrel, Ramipril, and Spironolactone
Peripheral neuropathy is a condition characterized by numbness and tingling in the extremities, often accompanied by a loss of ankle reflexes. Statins, such as simvastatin, are a known risk factor for peripheral neuropathy, with onset ranging from the first dose to years of use. Bendroflumethiazide, on the other hand, is not associated with neuropathy but can cause electrolyte imbalances leading to central neurological disturbances. Clopidogrel, an anti-platelet medication, is unlikely to contribute to peripheral neuropathy. Ramipril, a blood-pressure-lowering medication, can cause cough and dizziness but would not lead to peripheral neuropathy. Spironolactone, a diuretic, can cause hyperkalemia but would not lead to peripheral neuropathy. It is important to consider medication use when evaluating patients with peripheral neuropathy symptoms.
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This question is part of the following fields:
- Neurology
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Question 17
Correct
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An 80-year-old man presents with right-sided facial droop, dysphasia, and right-sided hemianopia. He has a medical history of gout, recurrent UTIs, dementia, and diabetes mellitus. A CT head is unremarkable, and an MRI head reveals a left-sided infarct. Which of the patient's pre-existing conditions elevate his chances of experiencing an ischemic stroke?
Your Answer: Diabetes mellitus
Explanation:The following factors increase the risk of ischaemic stroke: age, hypertension, smoking, hyperlipidaemia, diabetes mellitus, and atrial fibrillation. However, gout, recurrent UTIs, and dementia do not have an impact on stroke risk. Taking aspirin can lower the risk of stroke.
Understanding Stroke: A Basic Overview
Stroke is a significant cause of morbidity and mortality, with over 150,000 cases reported annually in the UK alone. It is the fourth leading cause of death in the country, killing twice as many women as breast cancer each year. However, the prevention and treatment of strokes have undergone significant changes in the past decade. What was once considered an untreatable condition is now viewed as a brain attack that requires emergency assessment to determine if patients can benefit from new treatments such as thrombolysis.
A stroke, also known as a cerebrovascular accident (CVA), occurs when there is a sudden interruption in the vascular supply of the brain. This interruption can lead to irreversible damage as neural tissue is entirely dependent on aerobic metabolism. There are two main types of strokes: ischaemic and haemorrhagic. Ischaemic strokes occur when there is a blockage in the blood vessel that stops blood flow, while haemorrhagic strokes happen when a blood vessel bursts, leading to a reduction in blood flow.
Symptoms of a stroke include motor weakness, speech problems, swallowing difficulties, visual field defects, and balance problems. The Oxford Stroke Classification is a formal system used to classify strokes based on initial symptoms. Patients with suspected stroke require emergency neuroimaging to determine if they are suitable for thrombolytic therapy to treat early ischaemic strokes. If the stroke is haemorrhagic, neurosurgical consultation should be considered for advice on further management.
In conclusion, understanding the basics of stroke is crucial in identifying and managing the condition. Early intervention and treatment can significantly improve outcomes for patients.
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This question is part of the following fields:
- Neurology
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Question 18
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A 60-year-old woman comes to the clinic complaining of a gradual loss of hearing and ringing in her right ear for the past 4 weeks. Upon examination, her ear canal and tympanic membrane appear normal. Rinne's test shows air conduction is better than bone conduction on both sides, but Weber's test reveals that the sound is heard best in her left ear. What is the probable diagnosis?
Your Answer: Acoustic neuroma
Explanation:Understanding Vestibular Schwannoma (Acoustic Neuroma)
Vestibular schwannoma, also known as acoustic neuroma, is a type of brain tumor that accounts for 5% of intracranial tumors and 90% of cerebellopontine angle tumors. The condition is characterized by a combination of symptoms such as vertigo, hearing loss, tinnitus, and an absent corneal reflex. The affected cranial nerves can predict the features of the condition. For instance, cranial nerve VIII can cause vertigo, unilateral sensorineural hearing loss, and unilateral tinnitus. On the other hand, cranial nerve V can lead to an absent corneal reflex, while cranial nerve VII can cause facial palsy.
Bilateral vestibular schwannomas are often seen in neurofibromatosis type 2. The diagnosis of vestibular schwannoma is made through an MRI of the cerebellopontine angle, and audiometry is also important since only 5% of patients have a normal audiogram.
The management of vestibular schwannoma involves surgery, radiotherapy, or observation. The choice of treatment depends on the size and location of the tumor, the patient’s age and overall health, and the severity of symptoms. In conclusion, understanding vestibular schwannoma is crucial in managing the condition effectively.
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This question is part of the following fields:
- Neurology
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Question 19
Correct
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A 25-year-old man is brought to the Emergency Department by his friends. Around 2 hours ago he was allegedly assaulted outside of a bar. He was repeatedly punched in the head and has sustained some bruising around his eyes. His friends report that he is 'concussed' and say that he is confused. On examination his GCS is 14 (M6 V4 E4) and he has trouble explaining where he is. There are no focal neurological features. There is no past medical history of note. Tonight he has drunk around four pints of lager. What is the most appropriate management with regards to a possible head injury?
Your Answer: CT head scan within 1 hour
Explanation:According to the latest NICE guidelines, a CT head scan is necessary for this patient as their GCS remains below 15 after 2 hours.
NICE Guidelines for Investigating Head Injuries in Adults
Head injuries can be serious and require prompt medical attention. The National Institute for Health and Care Excellence (NICE) has provided clear guidelines for healthcare professionals to determine which adult patients need further investigation with a CT head scan. Patients who require immediate CT head scans include those with a Glasgow Coma Scale (GCS) score of less than 13 on initial assessment, suspected open or depressed skull fractures, signs of basal skull fractures, post-traumatic seizures, focal neurological deficits, and more than one episode of vomiting.
For patients with any loss of consciousness or amnesia since the injury, a CT head scan within 8 hours is recommended for those who are 65 years or older, have a history of bleeding or clotting disorders, experienced a dangerous mechanism of injury, or have more than 30 minutes of retrograde amnesia of events immediately before the head injury. Additionally, patients on warfarin who have sustained a head injury with no other indications for a CT head scan should also receive a scan within 8 hours of the injury.
It is important for healthcare professionals to follow these guidelines to ensure that patients receive appropriate and timely care for their head injuries. By identifying those who require further investigation, healthcare professionals can provide the necessary treatment and support to prevent further complications and improve patient outcomes.
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This question is part of the following fields:
- Neurology
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Question 20
Correct
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A 32-year-old man presents to the Neurology Clinic. He has been recently diagnosed with idiopathic intracranial hypertension (IIH) and wants to know what lifestyle changes and medical treatments he needs to adopt to help reduce symptoms, and which to avoid.
Which of the following should be avoided in patients with IIH?
Your Answer: Maintaining a high-sodium diet
Explanation:Managing Idiopathic Intracranial Hypertension: Strategies and Interventions
Idiopathic intracranial hypertension (IIH) is a condition characterized by increased pressure within the skull, which can lead to vision loss and other neurological symptoms. Effective management of IIH involves a combination of lifestyle modifications, medication, and, in some cases, surgery. Here are some key strategies and interventions for managing IIH:
Low-sodium diet with acetazolamide: A low-sodium diet with acetazolamide has been shown to improve vision in patients with IIH. A high-sodium diet should be avoided as it can increase fluid retention and decrease the effectiveness of acetazolamide.
Weight loss: Weight loss can induce remission of papilledema in patients with IIH. A strict diet and pharmacological therapy may be necessary to achieve weight loss and prevent vision loss.
Surgical treatment: If patients are losing their vision despite maximal medical therapy, surgical treatment by optic-nerve-sheath fenestration or CSF shunting should be considered.
Discontinuing excessive vitamin A intake: Excessive vitamin A intake can increase CSF volume and pressure, so it is important to eliminate this risk factor in patients with IIH.
Discontinuing retinoid treatment: Retinoid, a metabolite of vitamin A, has been linked to the development of IIH. Therefore, discontinuing retinoid treatment is crucial when suspecting IIH.
Starting acetazolamide: Acetazolamide is a medication that decreases CSF production in humans and is often used in the initial management of IIH.
By implementing these strategies and interventions, patients with IIH can effectively manage their condition and prevent vision loss.
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This question is part of the following fields:
- Neurology
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