Questions about: Nerve conduction studies and Electromyography (EMG)
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Nerve conduction studies and an EMG (electromyogram) help diagnose the causes of symptoms such as numbness or weakness in parts of the body. Your doctor is likely to recommend them as part of a package of scans and tests.


Why you might need it

Your doctor is likely to recommend these tests to help diagnose symptoms such as numbness and weakness in specific parts of the body. They will interpret the results alongside those from other tests and scans.

Nerve conduction tests can help diagnose conditions affecting the peripheral nervous system (the nerves that lead away from the brain and spinal cord) such as carpal tunnel syndrome. The test involves passing a split second electrical pulse through particular nerves via small sticky electrode pads attached to your skin.

Sometimes your doctor will also ask that an EMG is carried out at the same time. This involves inserting a very fine electrode into the muscle to record the electrical activity when it contracts. You generally feel only a scratch when the electrode is inserted using a very thin acupuncture-like needle. An EMG can identify damage to muscle tissue and nerves.

All patients, either insured or paying for themselves, can gain rapid access to some of the latest generation imaging and medical treatments. We take an integrated approach so we can organise any other care should your need it.

How much does it cost?

Nerve conduction studies and electromyography (EMG) is available from £450.

Who will do it?




Before your treatment




Preparing for your treatment




When your test is being conducted, please tell us if you have a pacemaker, an implanted cardioverter or a cardiac defibrillator of if you are taking blood thinning medication.

You shouldn't use moisturiser on the day of the test as it can interfere with the results.

The procedure

We understand that having any medical procedure, even one as relatively straightforward as nerve tests, can cause anxiety. Our professional and caring medical staff will be there to reassure you throughout.

You’ll be lying on a table or sitting in a reclining chair for this procedure.

Your doctor will start the nerve condition study by applying electrodes (small, sticky pads) to your skin. They’ll apply an electrical pulse lasting one-thousandth of a second through the pad to test the nerve response. You might feel an instantaneous tapping sensation and the test might feel uncomfortable and briefly increase your usual symptoms for a few minutes.

Your doctor will record the size, shape and speed of responses from the nerves.

If you are also having an EMG, your doctor will insert an electrode into the muscle with a very fine needle. The needle is like those used in acupuncture and should not cause too much discomfort although you may have some bruising and soreness afterwards.

The electrode is attached to a machine that will record the electrical activity in the muscle as you tighten and release it when asked to do so by your doctor.

The whole procedure takes around 30 minutes.


Sometimes the doctor carrying out the tests is able to discuss preliminary results with you at the end of the consultation.

However usually they need to be considered alongside the results of other scans and investigations so you need an appointment with the referring consultant.

We’ll send the results to the consultant who referred you within a couple of days.

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