Physical Medicine & Rehabilitation and Eletrodiagnostic Medicine
Physiatrists are also experts in electrodiagnostic medicine, the study of diseases of the nerves and muscles. The electrodiagnostic
test (EDX) consists of two parts, the nerve conduction study (NCS) and the electromyogram (EMG).
The NCS assesses nerve function by applying a small electrical shock to the nerve and recording the response. The shock is a mild,
quick, tingling sensation. Typically, several nerves are evaluated during a test. The EMG provides complimentary information and
involves assessing, ordinarily, several muscles with a small, thin, disposable needle. The test usually lasts 30-60 minutes.
There are no activity restrictions prior to testing and normal activities, including driving, may be resumed afterward. You may eat,
drink, and take your medications as normal. Test preparation includes taking a shower or bath to remove skin oils. Lotions, creams,
and body oils should NOT be applied on the day of testing. Blood thinners, bleeding disorders, and pacemakers are not contra-indications
to testing, but make sure the physician is informed.