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How to prepare for an EMG/NCS

Before any appointment, you will be assessed by a Clinical Physiologist. This may be done in advance of your test or on the test day itself. All test results will be reviewed by the consultant who will explain them to you during your follow-up appointment.

  • Your hands and feet need to be warm as the coldness may slow down the velocity of impulses. It is sensible to wear gloves in the winter when coming for the test. Your hand and feet still may need to be warmed up
  • Avoid wearing moisturiser for 24 hours prior to the appointment
  • Wear loose- fitting clothing to allow easy access to the arms well above the elbows and legs up to the mid thigh
  • Please remember to bring a list of all the prescription medicines you take on the day of your test
  • Let your consultant know if you suffer from any allergies
  • You may eat in advance of your test, but we suggest a light meal only

Please tell your consultant if you:

  • Have a bleeding problem (haemophilia or low platelets) or take blood thinning medications, such as warfarin or aspirin. We may request your INR (blood clot test) results
  • Have a contagious skin disease
  • Are HIV or Hepatitis B positive
  • Have a pacemaker

None of these are contraindications for the test except that a needle EMG will not be performed if there is a severe bleeding tendency.

For more detailed information, please download the leaflet.