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It may be performed after a nerve conduction study to diagnose and treat conditions such as carpal tunnel syndrome, nerve injury or sciatica.

What happens during an electromyography?

An electromyography takes 30-60 minutes. It is usually performed as an outpatient meaning you can go home the day of the test.

Be sure and wear loose clothing so that you can move and engage any muscles that are being tested.

You will lie down or sit in a chair, depending on the area being tested. It is important to relax any muscles so that the activity levels can be measured both in a relaxed state and when the muscle is engaged.

A thin electrode needle will be inserted into the muscle. The electrode is attached by a wire to a machine. The technician will ask you to engage (contract or tighten) the muscle. The electrical activity is recorded by the machine.

They may need to move the electrode several times to ensure the activity is accurately recorded.

When the test is done, any electrodes are removed and the area will be cleaned. The insertion area may be slightly sore. You may feel a numbness or slight tingling in your muscles for 1-2 hours after the test. Be sure and let us know if you have any swelling or increased pain.

The technician may be able to tell you the results of the test before you leave. A complete report on your EMG will be sent to the consultant that ordered the test.


Find your nearest hospital that provides this test

Shenfield Road
Brentwood
CM15 8EH

01277 695695

Cardiff Bay Hospital
Dunleavey Drive
Cardiff
CF11 0SN

02920 836700

Wrexham Road
Chester
CH4 7QP

01244 680 444

Rykneld Road
Derby
DE23 4SN

01332 540100

25 Beaconsfield Road
Glasgow
G12 0PJ

01413349441

Burrell Road
Haywards Heath
RH16 1UD

01444 456999

Scraptoft Lane
Leicester
LE5 1HY

01162 769401

Clayton Road
Newcastle-under-Lyme
ST5 4DB

01782 625431

Staplegrove Elm
Taunton
TA2 6AN

01823 286991

Kingswood Road
Tunbridge Wells
TN2 4UL

01892 531111

The Chase
Old Milverton Lane
Leamington Spa
CV32 6RW

01926 436351

Winchester Road
Chandlers Ford
Eastleigh
SO53 2DW

02380 266 377

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