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Which ion channels have impaired function as indicated by electrophysiologic findings? A 33-year-old woman who is right-handed is brought to the physician because of a 3-day history of progressive weakness and numbness of her ARMS and legs. Neurologic examination shows proximal and distal weakness of the upper and lower extremities. There is areflexia. Sensation to vibration and joint position is decreased in the fingers and toes. Nerve conduction studies show a slow conduction velocity in the median, ulnar, peroneal, and tibial nerves.

This question is part of NBME 13 Section 2 (50 questions)
Asked by Chachelly, Last updated: Mar 06, 2020

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2 Answers

soliman

Soliman

Answered Dec 18, 2018

Answer is: Voltage- gated Na++channels

 

Chachelly

Chachelly

Answered Oct 15, 2018

Voltage-gated Ca+ + channels
1
 

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