Electromyography (EMG) is a medical procedure that involves assessing the function of skeletal muscles and nerves, being extremely important in diagnosing peripheral nervous system disorders. The electromyographic test is of two types:
- The study of nerve conduction involving nerve stimulation at different points on their route through a small electrical discharge. The doctor will apply small electrodes to the skin on the skin and apply a small electric shock to the skin in another area of the recording member. Although at first, the patient may be slightly overwhelmed by the sensation of electrical stimulation, it is not painful and most patients feel comfortable during the test procedure;
- Needle examination consisting of inserting small and thin needles into the muscles to record electrical activity. The patient may experience slight pain and discomfort when inserting needles. The doctor will ask the patient to relax and then flex their muscles gently, during which he will listen and monitor the electrical signals.
If the patient is undergoing treatment with anticoagulants, suffers from lung disease or is at risk of infection, he or she should inform the doctor who is performing the test. On the day of the test, the patient should avoid applying any lotions or creams to the area to be examined and not to wear any jewelry. The results are available immediately after the test.