Time Course of EMG/NCS Findings
Topic: Pharmacology
Created on Tuesday, January 16 2007 by
Last modified on Thursday, January 25 2007.
Sadly, you suffer from onychomycosis. Your malicious surgeon recommends general anesthesia for a really intense cleaning of the toenails.
When you awaken, he proudly announces, "Congratulations! I have successfully severed your C7 spinal nerve!"
You are kind of displeased.
On needle EMG, when will you be able to find fibrillations in intrinsic muscles of the hand?
A) Several months B) 2 to 3 weeks C) 7 to 10 days D) 10 to 14 days E) 4 to 6 weeks
This question was created on January 16, 2007 by .
This question was last modified on January 25, 2007.
ANSWERS AND EXPLANATIONS
A) several months
This answer is incorrect.
In radiculopathies, fibrillations of the most distal muscles may not be detected on needle EMG unitl up to 6 weeks after the initial injury. (
See References)
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B) 2 to 3 weeks
This answer is incorrect.
In radiculopathies, fibrillations of the most distal muscles may not be detected on needle EMG unitl up to 6 weeks after the initial injury. (
See References)
|
 |  |  |
|  |  |
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C) 7 to 10 days
This answer is incorrect.
In radiculopathies, fibrillations of the most distal muscles may not be detected on needle EMG unitl up to 6 weeks after the initial injury. (
See References)
|
 |  |  |
|  |  |
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D) 10 to 14 days
This answer is incorrect.
In radiculopathies, fibrillations of the most distal muscles may not be detected on needle EMG unitl up to 6 weeks after the initial injury. (
See References)
|
 |  |  |
|  |  |
| Please log in if you want to rate questions. |
E) 4 to 6 weeks
This answer is correct.
In radiculopathies, fibrillations of the most distal muscles may not be detected on needle EMG unitl up to 6 weeks after the initial injury. (
See References)
|
 |  |  |
|  |  |
| Please log in if you want to rate questions. |
References:
| 1. Preston, D.C., and Shapiro, B.E. (2005). Electromyography and Neuromuscular Disorders: Clinical-Electrophysiologic Correlations, 2nd Edition. Elsevier, Philadelphia. | |
| 2. Guarantors of Brain. (2000). Aids to the Examination of the Peripheral Nervous System, fourth edition. W.B. Saunders, Edinburgh. | |
| 3. Moore, K.L. (1992). Clinical Oriented Anatomy, 3rd Edition. Williams & Wilkins, Baltimore. | |
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pharmacology
Time Course of EMG/NCS Findings
Question ID: 01160700
Question written by . (C) FrontalCortex.com 2006-2009, all rights reserved.
Created: 01/16/2007
Modified: 01/25/2007
Estimated Permutations: 0