Your doctor has requested an EMG and NCS to be performed because you have reported some symptoms that raise the possibility of a problem affecting your nerves or muscles. This is done by recording the electrical activity they produce either at rest, when moving or when being stimulated by a small electrical current. What are EMG and NCS?ĮMG and NCS are an examination of your muscles and peripheral nerves. If after reading it you have any concerns or require further explanation, please discuss this with a member of the healthcare team caring for you. It is not intended to replace the discussion between you and your doctor, but may act as a starting point for discussion. Most of your questions should be answered by this leaflet. This leaflet has been produced to give you general information about your procedure. Need some help choosing a language? Please refer to Browsealoud Supported Voices and Languages. You can translate this page by using the headphones button (bottom left) and then select the globe to change the language of the page.