Quiz 06/07/2022

A 27-year-old woman presents with recurrent episodes of tinnitus, vertigo, and hearing loss. She denies any associated headaches. Episodes typically last between 2 and 6 hours in duration. MRI of the brain with and without contrast did not reveal any pathology. Physical examination is unremarkable except for sensorineural hearing loss appreciated in the right ear. Which of the following is the most likely diagnosis?

A 43-year-old female presents with rapidly declining cognitive function over the past few weeks. She is no longer able to hold a sustained conversation, she is no longer able to drive, and has worsening insomnia. CSF analysis shows increased 14-3-3 protein levels. What is the pathogenesis of this patient’s disease?

You are reading a visual evoked potential (VEP) that has a prolonged P100 latency in the right eye and a normal latency in the left eye. Of the following, which pathology is most consistent with this study?

Sleep spindles can be asynchronous until what age?

Paraphasic and semantic errors in speech can occur secondary to a lesion in which of the following regions?

Which of the following does this EEG tracing reveal?

Which of the following is the most appropriate pharmacologic agent for type II episodic ataxia?

The EEG pattern on this bipolar EEG recording is most consistent with which of the following epilepsy syndromes?

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?

Which of the anti-seizure medications (ASMs) listed operates under zero-order kinetics at high doses?

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?

A 64-year-old woman is brought to the office by her husband for changes in her speech pattern. While neurocognitive testing was largely unremarkable, her spontaneous speech appears effortful, halting, and laced with grammatical errors. MRI of the brain revealed left posterior frontal and insular atrophy. Which of the following is the most likely diagnosis?

Which of the following is the mechanism of action for amantadine?

Identify the electrographic pattern appreciated at electrode P3 in the EEG below: