Pain in the forearm 04

Topic: Adult

Created on Saturday, April 18 2009 by jdmiles

Last modified on Saturday, April 18 2009.

 
        A) The amplitude is normal, the distal latecy is normal, and the conduction velocity is normal.
 
        B) The amplitude is low, the distal latecy is normal, and the conduction velocity is normal.
 
        C) The amplitude is normal, the distal latecy is prolonged, and the conduction velocity is normal.
 
        D) The amplitude is low, the distal latecy is prolonged, and the conduction velocity is slow.
 
        E) The amplitude is low, the distal latecy is normal, and the conduction velocity is slow.
 

 

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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

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A) The amplitude is normal, the distal latecy is normal, and the conduction velocity is normal.

This answer is incorrect.

In a motor nerve conduction study of the median nerve in an adult, recording the abductor pollicis brevis, a normal amplitude is 4.0 mV or greater, a normal conduction velocity is 49 m/s or faster, and a normal distal latency is 4.4 ms or less.  (See References)

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B) The amplitude is low, the distal latecy is normal, and the conduction velocity is normal.

This answer is incorrect.

In a motor nerve conduction study of the median nerve in an adult, recording the abductor pollicis brevis, a normal amplitude is 4.0 mV or greater, a normal conduction velocity is 49 m/s or faster, and a normal distal latency is 4.4 ms or less.  (See References)

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---

C) The amplitude is normal, the distal latecy is prolonged, and the conduction velocity is normal.

This answer is correct.

In a motor nerve conduction study of the median nerve in an adult, recording the abductor pollicis brevis, a normal amplitude is 4.0 mV or greater, a normal conduction velocity is 49 m/s or faster, and a normal distal latency is 4.4 ms or less.  (See References)

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---

D) The amplitude is low, the distal latecy is prolonged, and the conduction velocity is slow.

This answer is incorrect.

In a motor nerve conduction study of the median nerve in an adult, recording the abductor pollicis brevis, a normal amplitude is 4.0 mV or greater, a normal conduction velocity is 49 m/s or faster, and a normal distal latency is 4.4 ms or less.  (See References)

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---

E) The amplitude is low, the distal latecy is normal, and the conduction velocity is slow.

This answer is incorrect.

In a motor nerve conduction study of the median nerve in an adult, recording the abductor pollicis brevis, a normal amplitude is 4.0 mV or greater, a normal conduction velocity is 49 m/s or faster, and a normal distal latency is 4.4 ms or less.  (See References)

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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 04
Question ID: 041809079
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 04/18/2009
Modified: 04/18/2009
Estimated Permutations: 8400