EMG Testing Information

Electromyography (EMG) measures muscle response or electrical activity in response to a nerve's stimulation of the muscle. The test is used to help detect neuromuscular abnormalities. During the test, probes are placed on the skin to detect nerve responses and a small needle is used to check the performance of the muscles. A nerve conduction test measures how well and how fast the nerves send electrical signals.

Symptoms indicating an EMG may be necessary:

• Entrapment neuropathies including:
  • Carpal tunnel syndrome
  • Cubital tunnel syndrome
  • Radial nerve palsy
  • Peroneal nerve palsy
  • Tarsal tunnel syndrome
• Radiculopathy in the cervical and lumbar regions
• Brachial and lumbosacral plexopathy
• Peripheral nerve injuries
• Pain, numbness or weakness of upper or lower extremities
• Polyneuropathy
• Diseases of the neuromuscular junction like myasthenia gravis
• Myopathy
• Motor neuron disease

EMG Patient Instructions

• Please do not apply lotion.
• Wear loose fitting clothing.

Electromyography (EMG) measures muscle response or electrical activity in response to a nerve's stimulation of the muscle. The test is used to help detect neuromuscular abnormalities. During the test, probes are placed on the skin to detect nerve responses and a small needle is used to check the performance of the muscles. A nerve conduction test measures how well and how fast the nerves send electrical signals.