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Median motor nerve conduction study normal values 01

Topic: Physiology

Created on Thursday, July 6 2006 by jdmiles

Last modified on Saturday, April 18 2009.

You are performing a motor nerve conduction test on an adult.
You are testing the median nerve, recording at the abductor pollicis brevis muscle.
Of the following choices, which best defines the normal amplitude value?

 
        A) 2 mV or higher
 
        B) 14 mV or higher
 
        C) 4 mV or higher
 
        D) 3 uV or higher
 
        E) 8 mV or higher
 

 


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This question was created on July 06, 2006 by jdmiles.
This question was last modified on April 18, 2009.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ANSWERS AND EXPLANATIONS




A) 2 mV or higher

This answer is incorrect.


When performing a motor nerve conduction test on the median nerve, testing at the abductor pollicis brevis, in an adult, the normal amplitude is 4 mV or higher.  (See References)

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B) 14 mV or higher

This answer is incorrect.


When performing a motor nerve conduction test on the median nerve, testing at the abductor pollicis brevis, in an adult, the normal amplitude is 4 mV or higher.  (See References)

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C) 4 mV or higher

This answer is correct.


When performing a motor nerve conduction test on the median nerve, testing at the abductor pollicis brevis, in an adult, the normal amplitude is 4 mV or higher.  (See References)

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D) 3 uV or higher

This answer is incorrect.


When performing a motor nerve conduction test on the median nerve, testing at the abductor pollicis brevis, in an adult, the normal amplitude is 4 mV or higher.  (See References)

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E) 8 mV or higher

This answer is incorrect.


When performing a motor nerve conduction test on the median nerve, testing at the abductor pollicis brevis, in an adult, the normal amplitude is 4 mV or higher.  (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)Advertising:
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physiology
Median motor nerve conduction study normal values 01
Question ID: 041809092
Question written by J. Douglas Miles, (C) 2006-2009, all rights reserved.
Created: 07/06/2006
Modified: 04/18/2009
Estimated Permutations: 120

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