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A 21-year-old female was admitted to the hospital with a 3 weeks history of progressive lower extremity weakness. An EMG was performed and the results were shown below. Based on the clinical history, examination, and diagnostic testing, the patient was started on plasma exchange (PLEX) therapy. After completing her PLEX therapy there was a marked improvement in her weakness. Although not shown below, which of the following additional NCS/EMG results were also likely present on the day of recording?
A 67-year-old male wakes up with a painful, right-sided, itchy rash coming across his abdomen like a band involving the umbilicus. His primary care provider is concerned that the patient has shingles. For this patient, re-activation of the varicella-zoster virus occurred at the dorsal root ganglion at which thoracic level?
What is the earliest NCS/EMG abnormality found in AIDP?
Which way are the patient’s eyes moving at the point of the asterisk marked below?
A 26-year-old woman presents to the emergency department with third-degree burns covering the entire palmar aspect of her right hand. She claims that she was cooking dinner and touched the stove, but states that she “didn’t notice it was hot”. On neurologic exam, she is unable to distinguish between hot and cold sensations on her hands, arms, shoulders, chest, and back. She also fails to respond to pinprick sensation in the same distribution. She denies any major recent traumatic injuries. Which of the following is the most likely cause of her symptoms?
Oculomotor nerve palsy is most likely to be seen secondary to an aneurysm in which of the following arteries?
The lesion shown below (blue arrow) is most consistent with which of the following pathologies?
A 10-month-old male with no significant past medical history has had a 2-month history of abnormal movements. The family describes these events as head drops and head-turning. On examination, horizontal nystagmus is appreciated. MRI revealed no abnormal findings. What is the most likely diagnosis?
A 68-year-old woman with no significant medical history presents in the emergency room with acute aphasia and right-sided weakness. Her wife who is in the room states the patient was last seen well one hour prior to arrival at the hospital. A CT scan of the head showed no acute hemorrhage. After screening the patient and discussing the risks and benefits of acute pharmacological therapy with her significant other the patient was given intravenous tPA. Thirty minutes later the patient had an acute neurological decline. She was sent for a repeat CT scan which showed a new 16 cc intraparenchymal hemorrhage in the left hemisphere. What is this an example of?
A 16-year-old male is brought to the emergency room by his parents for generalized weakness. The patient states that he woke up in the morning that day with flaccid paralysis of his arms and legs which was so significant that he couldn’t get out of bed. In typical teenage boy fashion, he wasn’t very worried about this at the time and went back to bed. It wasn’t until 4 hours later when he woke up again with the same degree of weakness that he became concerned and screamed for his parents to help. The patient denies any recent drug or alcohol use. The only interesting thing from the previous night was that he partook in and won a pizza-eating contest with his friends. The patient’s father admits to having had similar episodes to this when he was younger. If the patient’s symptoms are due to a genetic disorder, a mutation in which of the following genes is most likely responsible?
Which of the following is correct regarding the H-reflex?
Which of the following symptoms seen with normal pressure hydrocephalus (NPH) is the most responsive CSF shunt placement?
Which of the following is the mechanism of action of entacapone?
A 26-year-old physics teacher and mother on valproic acid (VPA) for epilepsy presents to your clinic with her husband stating she wishes to try to become pregnant soon. She asks how anti-seizure medications (ASMs) used during pregnancy may impact the intelligence and school performance of her child. Which is the most accurate response?
You are caring for a 1-month-old infant in the neonatal ICU with abnormal movements since birth. The baby is seen writhing in bed, with her arms and legs and axial trunk moving in a snake-like pattern. A CT head is done and shows bilateral cystic lesions on the basal ganglia. Toxic levels of which of the following are most likely at play?