Electromyography (EMG): Muscle & Nerve Test

Electromyography (EMG): Understanding Muscle and Nerve Health

Electromyography, or EMG, is a diagnostic test that provides detailed information about muscle and nerve function. It helps doctors identify the causes of muscle weakness, numbness, tingling, or involuntary movements.

Why EMG Is Performed

• Muscle & Nerve Disorders: To diagnose weakness, numbness, tingling, pain, or muscle twitching.

• Neurological Conditions: Detect conditions like Myasthenia Gravis, Multiple Sclerosis, or Myopathy.

• Injury Assessment: Evaluate the extent of muscle or nerve damage after an injury.

• Post-Surgery Evaluation: Check the recovery of muscle and nerve function after surgery.

How EMG Is Performed
During EMG, a small needle electrode is inserted into the muscle to record electrical signals. These signals are displayed on a computer. Patients are asked to contract their muscles during the test.

Before the EMG Test

• Follow all instructions from your doctor carefully.

• Wash your hair and avoid using oils or gels.

• Avoid caffeine such as coffee or tea.

• Consult your doctor about any medications you are taking.

After the EMG Test
Some temporary soreness or discomfort in the muscles may occur, which usually resolves within a few hours.

What EMG Results Show

• Muscle strength and activity

• Speed and efficiency of nerve signals

• Quality of communication between muscles and nerves

• Presence of abnormal muscle activity

Benefits of EMG

• Safe and minimally invasive procedure

• Helps accurately diagnose muscle and nerve disorders

• Allows monitoring of muscle and nerve function over time

Important Note
EMG is a medical test. Consulting a neurologist before undergoing EMG is highly recommended to ensure proper evaluation and guidance.