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Pain in the forearm 03

Topic: Adult

Created on Saturday, April 18 2009 by jdmiles

Last modified on Saturday, April 18 2009.

A 25 year-old woman presents complaining of pain and tingling in her right arm. The pain is in her wrist, forearm, and elbow. The tingling is in her thumb and index finger. She says it's been going on for about 4 weeks, and getting worse. It frequently wakes her up at night. When it does, she shakes it out, and after a few minutes it feels better. She is diabetic, has hypothyroidism, and is 9 months pregnant. She works as a cashier. Which of the following sensory nerve conduction studies will yield the most information in the diagnosis of this patient?

A) Lateral antebrachial

B) Median

C) Radial

D) Sural

E) Dorsal ulnar

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This question was created on April 18, 2009 by jdmiles.
This question was last modified on April 18, 2009.

ANSWERS AND EXPLANATIONS

A) lateral antebrachial

This answer is incorrect.

This woman's history is consistent with median mononeuropathy at the wrist (Carpal tunnel syndrome or CTS). Of the sensory nerve conduction studies listed, the median study will provide the most information regarding this patient. (See References)

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B) median

This answer is correct.

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C) radial

This answer is incorrect.

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D) sural

This answer is incorrect.

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E) dorsal ulnar

This answer is incorrect.

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References:

1. Preston, D.C., and Shapiro, B.E. (2005). Electromyography and Neuromuscular Disorders: Clinical-Electrophysiologic Correlations, 2nd Edition. Elsevier, Philadelphia. (ISBN:075067492X)

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adult
Pain in the forearm 03
Question ID: 041809073
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 04/18/2009
Modified: 04/18/2009
Estimated Permutations: 600