An electromyogram, or EMG, is a test that checks how your child’s muscles respond to messages sent by his nerves. The test measures the activity of your child’s muscles in response to small amounts of electricity passed through a needle to the muscles.
An electromyogram can help diagnose problems such as:
An EMG can be done at a hospital or in a testing center. First your child may be given a sedative to relax him. The healthcare provider will insert several small needles attached to wires through your child’s skin into the muscles where your child is having symptoms. The wires record the electrical activity of the muscles. Your child’s muscles may be tested when they are resting, when contracting gently, and when contracting forcefully. The test can be slightly painful when the electricity passes through the wires to the muscles.
The test takes 30 to 60 minutes, depending on how many of your child’s muscles are being tested.
Your child’s muscles may feel tender or bruised for a few days after the test.
Ask your healthcare provider:
Make sure you know when your child should come back for a checkup. Keep all appointments for provider visits or tests.