Neurophysiology REFERRAL

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Neurophysiology Services

EMG and NCS for

Carpal Tunnel And Ulnar Nerve Entrapment

Brachial Plexus Injuries And Pathologies

Peripheral Neuropathies

Myopathies And Myositis

Radiculopathies

Neuromuscular Junction Disorders

Cranial Nerve NCS and EMG

ALS And Cramp Fasciculation

Periodic Paralysis

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Patient Information

Nerve Conduction Study (NCS) and Electromyography (EMG)

Nerve Conduction Studies (NCS) and Electromyography (EMG) are diagnostic tests used to evaluate the health of your nerves and muscles. These tests help identify conditions such as nerve damage, pinched nerves, muscle disorders, or neurological diseases.

What to Expect During NCS and EMG Tests

Nerve Conduction Study (NCS):

  • Small electrodes are placed on your skin over specific nerves.
  • A mild electrical impulse is sent through the nerve to measure its response.
  • You may feel a brief tingling or mild shock sensation.
  • The test is usually quick, lasting 30–60 minutes.

Electromyography (EMG):

  • A thin, sterile needle electrode is inserted into specific muscles.
  • The needle records electrical activity in your muscles, both at rest and during movement.
  • You may feel mild discomfort or pressure during needle insertion.
  • EMG typically takes 20–40 minutes depending on the number of muscles examined.

How to Prepare for Your NCS and EMG Tests

Clothing and Accessories:

  • Wear loose, comfortable clothing. You may be asked to change into a hospital gown.
  • Avoid wearing lotions, oils, or creams on the day of the test as they may interfere with electrode placement.

Medications:

  • Continue taking your prescribed medications unless instructed otherwise by your doctor.
  • Inform the healthcare provider about any blood-thinning medications, as they may require special precautions for EMG.

Medical History:

  • Share your full medical history, including any implanted devices like pacemakers or defibrillators, with the medical team.
  • Mention if you have a bleeding disorder or are prone to infections.

Day of the Test:

  • Eat a light meal before your appointment unless instructed to fast.
  • Arrive a few minutes early to complete any necessary paperwork and relax before the procedure.

After the Test

  • You can resume normal activities immediately after the tests unless otherwise advised.
  • Some muscle soreness or tenderness may occur after an EMG, but this typically resolves within a day.
  • Your doctor will discuss the test results and next steps at a follow-up appointment.

If you have any concerns or questions before your appointment, please contact our office for assistance. We are here to ensure your comfort and understanding throughout the process!