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Electrodiagnostic study, EMG, neuromuscular junction testing.
To assess the electrical activity within the skeletal muscles to assist in diagnosing diseases such as muscular dystrophy, Guillain-Barré, polio, and other myopathies.
There are no food or activity restrictions unless by medical direction. Under medical direction, the patient should avoid muscle relaxants, cholinergics, and anticholinergics for 3 to 6 days before the test. Instruct the patient to abstain from smoking and drinking caffeine-containing beverages for 3 hr before the procedure. Protocols may vary among facilities.
- Normal muscle electrical activity during rest and contraction states.
Critical Findings and Potential Interventions
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Bladh, Mickey Lynn., and Anne M. Van Leeuwen. "Electromyography." Davis's Lab & Diagnostic Tests, 7th ed., F.A. Davis Company, 2017. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425305/4/Electromyography.
Bladh ML, Van Leeuwen AM. Electromyography. Davis's Lab & Diagnostic Tests. 7th ed. F.A. Davis Company; 2017. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425305/4/Electromyography. Accessed October 21, 2019.
Bladh, M. L., & Van Leeuwen, A. M. (2017). Electromyography. In Davis's Lab & Diagnostic Tests. Available from https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425305/4/Electromyography
Bladh ML, Van Leeuwen AM. Electromyography [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2017. [cited 2019 October 21]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425305/4/Electromyography.
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