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A 19-year-old woman was brought to the emergency department after a rollover motor vehicle accident. On arrival, she was intubated and sedated for respiratory failure secondary to pneumothorax. Examination revealed intact brain stem reflexes and decreased spontaneous movement of the left side of her body. Her axial head CT scan is shown below. What is the most likely diagnosis?
A 37-year-old woman treated for herpes simplex virus (HSV) encephalitis two months ago returns to the ER with new personality changes, seizures, and orofacial dyskinesia. What is the most likely diagnosis?
Which of the following medications has the highest risk for QT prolongation?
Which of the following medications do not worsen myasthenia gravis symptoms?
A 65-year-old male with a history of alcoholic cirrhosis presents to the emergency department with dark black coffee-ground emesis. He is found to have a systolic blood pressure of 76/40 and is tachycardic to 120 BPM. Which nerve is most responsible for carrying the afferent fibers from carotid sinus baroreceptors that cause the reflex increase in heart rate seen in this patient?
A 90-year-old woman presents to the emergency room with an acute change in mental status. On examination, she is alert but is not answering questions or following commands. Speech is fluent, but not interpretable. Comprehension is severely impaired. Interestingly she was able to repeat full sentences without much difficulty. Which of the following is the most likely territory of ischemic damage?
A 25-year-old male with a history of sensorineural hearing loss and tinnitus has an MRI brain ordered as part of his workup (see below). A genetic syndrome is suspected. Which of the following is also likely to be found on imaging?
A 32-year-old man with no significant past medical history presents to the emergency department after experiencing a generalized tonic-clonic seizure. His neurological examination was unremarkable. As part of his work-up, an MRI was obtained (see FLAIR axial image below). What is the most appropriate next step in management?
An abnormal breathing pattern described as irregular inspiratory phases and variable intervals of apnea can localize to damage to which of the following regions along the neuraxis?
Which of the following medications is the most effective in the management of PTSD-associated nightmares?
A 64-year-old man with idiopathic Parkinson’s disease being treated with carbidopa-levodopa is experiencing significant wearing-off despite increasing frequency and dose of levodopa-carbidopa, which is now producing significant peak dose dyskinesia. Which of the following would be a reasonable next agent to prescribe to reduce this wearing-off effect?
Which of the following is not a risk factor for carotid dissection?
Which of the following are actions of the superior rectus muscle?
A 35-year-old man developed a right clavicle fracture after an accidental fall from a ladder while hanging Christmas lights. He was treated conservatively with a figure-of-eight bandage and sling. He presents to your clinic 2 weeks after the accident. He states ever since the accident he has had right arm and shoulder pain, as well as numbness extending from his triceps to his middle dorsal aspect of the forearm, wrist, and dorsal aspect of digits 1,2 and 3. On examination, his strength is 5/5 throughout all extremities except 4/5 to abduction of the deltoid, extension of the triceps, and wrist extension.
Which nerve or cord, if injured by the clavicle fracture, would explain his symptoms?
A neurology consult is placed on a full-term newborn male after being delivered by an uncomplicated vaginal delivery with good APGAR scores. The physical exam reveals a midline lesion in his lumbar region. Based on the pathology shown below, which of the following would most likely also be present on head imaging?
A 28-year-old woman with a history of intractable epilepsy presents to you for outpatient follow-up. She has been seizure-free on valproic acid and levetiracetam for the last 18 months. She reports a desire to become pregnant and asks if she has an increased risk of in-utero defects with her medications. Which of the following is the most appropriate answer to this question?
A 30-year-old male presents to the emergency room with weakness in his bilateral lower extremities. On arrival, he was hypertensive and bradycardic. 2/5 strength is appreciated in his bilateral lower extremities. A loss of pinprick sensation is also appreciated from his lower extremities, but proprioception and vibratory sensation are intact. These findings are most likely secondary to a lesion of which of the following blood vessels?
Which of the following genes is responsible for familial ALS?
A 58-year-old male presents with a few months of progressive symptoms. He reports limb rigidity, left greater than right, as well as neck stiffness. On exam, you note bradykinesia and cervical dystonia. He does not have a tremor. Speech is hesitant, and there is evidence of speech apraxia. You also note that the patient has trouble controlling the location of his left hand in space, and he grabs for your stethoscope without realizing it.
What is the most likely diagnosis?
A 57-year-old male with an unknown past medical history who recently immigrated from South Asia presents to the emergency department with new-onset skin lesions on his arms. On physical exam, the patient has two large, erythematous lesions with a clearly demarcated but flat border. The nerves around these lesions appear thickened. Biopsy of the lesions shows epithelioid cell granulomas and few bacteria. What is the most likely diagnosis?