: Sensory Nerve Conduction Study, Peripheral Nerve

: What This Test Measures

: Nerves carry tiny electrical signals through your body. A sensory nerve conduction study checks the speed and strength of signals traveling along a sensory nerve, which is a nerve that carries sensation such as touch, vibration, or temperature. The results help your doctor understand whether the nerve is working as expected.

: How the Test Is Done

: Small electrodes are placed on your skin over the nerve being tested. A brief electrical pulse is applied to stimulate the nerve, and the response is recorded. You may feel a quick tingling or tapping sensation. The test is usually done in a clinic and generally takes a short amount of time per nerve.

: What the Results Can Show

: The test can show whether nerve signals are slower, weaker, or absent compared with what is expected for your age and body size. These findings can point to nerve irritation, compression, or damage. Your doctor interprets the results together with your symptoms and physical exam.

: How to Prepare

: Your care team will tell you how to prepare. In general, keep your skin clean and avoid lotions on the day of the test. Tell the staff if you have a pacemaker or other implanted electrical device, and let them know about any medications or skin conditions in the area being tested.