Talk to your doctor about any concerns you have regarding the need for the test, its risks, how it will be done, or what the results will mean. You may be given a hospital gown to wear.įor an EMG, you may be asked to sign a consent form. Wear loose-fitting clothing so your muscles and nerves can be tested. If you take blood thinners, your doctor will tell you when to stop taking them before the test.ĭo not smoke for 3 hours before the test.ĭo not eat or drink foods that contain caffeine (such as coffee, tea, cola, and chocolate) for 2 to 3 hours before the test. Have had bleeding problems or take blood thinners, such as warfarin or heparin. You may need to stop taking these medicines 3 to 6 days before the test. Certain medicines that affect the nervous system can change electromyogram (EMG) results.
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