Diagnostic Testing

How to prepare for a nerve conduction study

Arrive with clean skin and no lotion, cream or oil on the arms or legs being tested, keep your hands and feet warm on the way in, and wear clothing that lets the limb be uncovered. Tell the team about blood thinners, a pacemaker or a defibrillator beforehand.

Quick answer

Arrive with clean skin and no lotion, cream or oil on the arms or legs being tested, keep your hands and feet warm on the way in, and wear clothing that lets the limb be uncovered. Tell the team about blood thinners, a pacemaker or a defibrillator beforehand.

Skin and temperature

Two things affect the quality of the recording more than anything else you control. The first is skin preparation: lotion, cream, oil and fake tan all block electrode contact, so skip them entirely on the day. The second is temperature. Cold limbs slow nerve conduction and produce readings that look abnormal when they are not, so the technologist may warm your hand or foot before starting. You can help by keeping warm on the journey in, especially in winter or if you have been sitting in air conditioning.

What to tell them in advance

Anticoagulants and antiplatelet medication matter if the needle portion of electromyography is planned in the same session, because they change how and where the needle examination is done. An implanted pacemaker or defibrillator changes the stimulation technique. Any open wound, active infection, or lymphoedema in a limb is worth mentioning. So is a needle phobia, because knowing in advance lets the study be paced differently rather than abandoned halfway.

Clothing, timing and afterwards

Wear loose sleeves and trousers, or bring shorts, so the limb can be uncovered without undressing completely. Remove watches and jewellery from the areas being tested. Eat and take medications normally. There is no sedation, so you can drive yourself home and return to work. If the needle portion was done, expect mild muscle soreness for about a day, comparable to the ache after unfamiliar exercise, and possibly a small bruise at a needle site.

About this practice

Clinical Neurology Specialists has been physician-owned since 1998, when Leo Germin, M.D., FAANEM founded it. Five board-certified neurologists and four advanced practice providers see patients at the Las Vegas and Henderson offices, each with its own AANEM-accredited electrodiagnostic laboratory.

Clinical Neurology Specialists is an adult outpatient neurology practice for patients 18 and older. The practice performs no surgery and operates no imaging suite, infusion suite or interventional pain programme, and provides no emergency or inpatient care.

Emergency & crisis resources: Clinical Neurology Specialists is not an emergency service. For stroke symptoms, a seizure lasting more than five minutes or any medical emergency, call 911 or go to the nearest emergency room. For a mental health crisis, call or text 988 (Suicide & Crisis Lifeline).

Frequently asked

Questions about how to prepare for a nerve conduction study

How do I prepare for a nerve conduction study?
Come with clean skin and no lotion, cream, oil or fake tan on the limbs being tested, because all of them block electrode contact. Keep your hands and feet warm on the way in, since cold slows conduction and produces falsely abnormal readings. Wear loose clothing that lets the arm or leg be uncovered easily.
Why does temperature matter?
Because nerve conduction genuinely slows in cold tissue, so a cold hand or foot can produce results that look abnormal when the nerve is fine. The technologist will warm the limb if needed, but arriving warm saves time and improves accuracy. This matters more than most people expect, particularly in winter or after sitting in air conditioning.
What should I tell them beforehand?
Blood thinners or antiplatelet medication, an implanted pacemaker or defibrillator, any open wound, active skin infection or lymphoedema in the limb being tested, and a needle phobia if you have one. Each of those changes how the study is planned, and knowing in advance is far better than discovering it partway through.
Do I need to stop my medication?
Usually not. Blood thinners are generally continued and the study is adapted around them rather than postponed. Do not stop any prescribed medication on your own before a test. If something genuinely needs holding, the clinician who ordered the study will tell you specifically and explain for how long.
Can I eat and drive normally?
Yes to both. There is no fasting requirement and no sedation, so the appointment fits into an ordinary working day and you can drive yourself in and out. Mild soreness in the muscles tested is common for about a day afterwards if the needle portion was included, but it does not affect driving.

Physician-reviewed. Reviewed by the physicians of Clinical Neurology Specialists — board-certified neurologists, AANEM-accredited electrodiagnostic laboratories, physician-owned since 1998. Reviewed 1 August 2026. This article is general education for adults 18 and older and is not a substitute for a consultation.

Next step

Speak to a board-certified neurologist

Adults 18 and older, at the Las Vegas and Henderson offices. Call 702-804-1212 or request an appointment online.