Electromyography: Results and Values (EMG)

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Alternate Names : EMG

Disorders or conditions that cause abnormal results include:

polymyositis, or inflammation of the skeletal muscle tissue

muscular dystrophy, a group of inherited muscle disorders that cause muscle weakness

myopathy, which means any disease or abnormal condition of muscles

traumatic injury

hyperadrenalism, or increased secretion from the adrenal gland

hypothyroidism, or decreased secretion from the thyroid gland

carpal tunnel syndrome, which is pain or numbness that affects the hand

sarcoidosis, a disease in which abnormal collections of inflammatory cells form in many organs of the body

Guillain-Barre syndrome, an autoimmune disease in which the myelin sheathes of nerves are destroyed, causing a loss of motor function

myasthenia gravis, an autoimmune disease that causes muscle weakness

multiple sclerosis, an autoimmune disorder of the central nervous system

diabetic neuropathy, which causes a painful tingling or burning sensation in the hands and feet

amyotrophic lateral sclerosis, a progressive disease marked by muscle weakness

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Electromyography: Preparation & Expectations

Author: Gail Hendrickson, RN, BS
Reviewer: Eileen McLaughlin, RN, BSN
Date Reviewed: 06/07/01

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