Myths about neurophysiology.

  • The test is painful.

    Not true. Although it will not be the most comfortable test you may have had, I have completed more than 2,000 studies and most of time, the patients are happily surprised by how easy and thorough the test is.

    See: “What to expect” below.

  • I have to wait for the results.

    I interpret the data very quickly. Your referring physician will have a complete report within the next day. I usually discuss result with the physician directly.

  • Do I really need this test?

    This test is the “Gold Standard” to assess the function of your nerves. Usually, you are referred for this test to complement other tests you may have had. It provides your physician with more certainty on the course to follow for your recovery.

Nerve conduction: What to expect.

Small sticker electrodes will be placed on your hand/feet.

A short and light impulse of current will be applied to your nerve at the location of your nerve.

The potential recorded through the electrode is viewed on the laptop and analyzed.

You can take any medication you need to prior to the test; however, it is best not to apply any lotion on your skin as it will require more electricity to go through it.

I will tell you the result of your test at the end of the test.

Needle EMG: What to expect.

The second part of the test does not involve electrical impulses but just recording potential from your muscles using a tiny needle (30 gauge).

The needle is the size of an acupuncture needle.

As different muscles are connected to different nerves, I usually sample at least five muscles per limb. Sometimes, more is helpful to circumbscribe the lesion.

I will ask you to slightly contract your muscle so we can analyzed the waveform produces by your muscle cells.

Taking anticoagulation medication has very little effect on this test.