how long does a EMG test take
The nerve conduction part of the test usually takes longer than the needle exam because one needs to make calculations and measurements during it. On average, if one extremity is studied, the nerve conductions take anywhere between 15 and 30 minutes.The needle exam for one extremity usually takes 15 to 20 minutes.ew preparations are needed on the day you have an EMG. You do not need to fast, or eat any particular kinds of food before the test. You can drive yourself to and from the test, so you do not need to bring a friend or a relative with you, any more than you would say if you went to the dentist.