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A 4-day-old full-term baby is brought to the hospital for two episodes of generalized stiffening and apnea for less than 1 minute followed by a return to baseline. The physical exam is unremarkable and CTH is negative. The mother reports having similar episodes shortly after birth. What is the most likely cause of the episodes?
In normal neonatal development, which of the following structures myelinates the latest?
Which of the following vessels that supply the thalamus typically originates from the posterior communicating artery (PCOM)?
A 6-month-old previously healthy male is seen in your clinic due to feeding difficulties and weakness for the past 8 days. The mother reports that he has also not had a bowel movement in 3 days. On physical exam, the patient demonstrates a weak cry, severe hypotonia, and hypo-responsiveness. No one else in the family is sick, however, they have been eating homemade molasses for the past 4 weeks. This patient’s condition is caused by a toxin affecting which structure?
A 19-year-old male presents to the ED during finals week of college after he had witnessed generalized convulsive activity on the floor of his dorm room. He has since returned to baseline. He states he has never had shaking like this before, other than when he wakes in the morning he’ll get an occasional twitch or two. An EEG is performed as below. Which is the treatment of choice?
A 30-year-old female with a past medical history significant for acne, migraine without aura, and depression presents to the emergency room with severe recurrent headaches. She says the headaches come on quickly and only last a couple of minutes but are debilitating. CTH was normal. A CTA head and neck was performed which showed segmental artery narrowing in the proximal MCA territory. Which of the following medications was the most likely trigger of this patient’s presentation?
Which of the following is most likely to show temporal dispersion of the action potential?
Which of the following is not one of the absolute exclusionary criteria for tissue plasminogen activator (tPA)?
A 65-year-old female patient presents with right homonymous hemianopsia for the past week. She also says she has difficulty reading but no problems with writing. Which of the following area of the brain is likely affected?
The medulla develops from which of the five primary vesicles of the brain?