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Which of the following medications is the most appropriate pharmacologic agent for paroxysmal kinesigenic dyskinesia?
Where is the anatomic origin of the normal EEG sleep structure seen in the 3rd second of this recording?
Pilocytic astrocytomas characteristically have which of the following genetic abnormalities?
Metachromatic leukodystrophy is due to a deficiency of which of the following enzymes?
Which of the following is a side effect of glatiramer acetate?
Which of the following medications may be unsafe for the treatment of migraine headaches in patients with a history of coronary artery disease (CAD)?
What is the electrographic pattern seen best in the right temporal electrodes?
A 56-year-old woman with recent open-heart surgery develops sudden onset, painless right eye vision loss. On funduscopic examination, the optic disc appears swollen and pale. No other significant findings were appreciated on the funduscopic exam. Damage to which of the following structures is the most likely cause of the patient’s symptoms?
What findings would be found on EMG/NCS in a patient who presents with a small fiber neuropathy?
A 55-year-old male cigarette smoker with a past medical history of hypertension and medication non-compliance presents to the emergency room with an excruciating headache and altered mentation. An MRI of the brain is completed and provided below (T2 sequence). Which of the following is the most likely diagnosis?
Aquaporin-4 (AQP4) channels are found on which cell type?
A 30-year-old man with a past medical history of migraines presents to the emergency department for his typical migraine symptoms, which have become intractable. He is treated with a “migraine cocktail” (normal saline, acetaminophen, and prochlorperazine) with some improvement. You are then called to the bedside for concern that he is having a possible seizure. His head is turned forcibly to the right without eye deviation and he is able to follow commands and verbalize. Which of the following is the best next step in management?
Other than optic neuritis, which of the following is another typical MRI finding in patients with neuromyelitis optica (NMO) that has diagnostic value?
A 6-month-old boy with no significant past medical history is brought to the clinic by his father because of abnormal limb movements that occur multiple times a day. His father describes high-frequency, low amplitude rhythmic movements that start in the child’s head and quickly spread down the shoulders. Episodes last approximately 1-2 seconds. There are no clear triggers and there is no loss of consciousness associated with the events. Family history is significant for essential tremor in the patient’s mother. Which of the following is the most likely diagnosis?
Which of the following is not a risk factor for carotid dissection?