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Doctor insights on: Emg Nerve Conduction Test

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What does a normal emg/nerve conduction test tell you?

What does a normal emg/nerve conduction test tell you?

Interpretation: Assuming the test was comprehensive and technically competent, this can eliminate large fiber neuropathy, and most muscle diseases. But does not eliminate small fibre neuropathy, or disease of brain and/or spinal cord. Symptoms due to intermittent nerve compression are not fully excluded either. ...Read more

Dr. Michele Arnold
1,322 doctors shared insights

Electromyography (Definition)

Emg (electromyography) is a test of your muscles and nerves. It is typically performed along with nerve conduction studies (ncs). The EMG portion involves placing a recording pin (like a fine wire antenna) into various muscles, looking for 'muscle distress signals' that could suggest nerve or muscle diseases/problems. Nerve conduction studies involve stimulating nerves ...Read more


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What can I expect from an emg, or nerve conduction test?

What can I expect from an emg, or nerve conduction test?

Tolerable discomfort: There are two parts to an EMG test: nerve conduction studies and electromyography. Nerve conduction studies feel like a short, electrical impulse and are, in a word, annoying. Emg uses a fine wire electrode to record from muscles and feels like an insect bite. It is not as bad as a shot or IV or blood draw. Several muscles and several nerves are usually checked. ...Read more

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What is an emg and nerve conduction test for?

What is an emg and nerve conduction test for?

Nerves & muscles: Emg and nerve conduction studies are used to detect abnormalities of nerves and muscles. The test evaluates nerve roots as they exit your spine, the nerve plexus, peripheral nerves, the nerve-muscle junction, and muscle itself. It can detect pinched/compressed nerves (sciatica, carpal tunnel, and others), muscle disorders, neuropathy, and many other neuromuscular conditions. ...Read more

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Two part ? Whats the difference bettween an EMG and nerve conduction test AND is it more painful or less if you have nerve damage?

Two part ? Whats the difference bettween an EMG and nerve conduction test AND  is it more painful or less if you have nerve damage?

There are two parts: Nerve conduction study: Electrodes are put on skin over a nerve. Mild electric shocks (not painful) cause axons to transmit action potentials (nerve impulses). Velocity & amplitude (speed & strength) of impulses are measured. This measures nerve's function. Electromyogram: Needle electrodes are stuck in muscles innervated by a nerve. Electrical activity of muscle => data on nerve function. ...Read more

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What does denervation in calf area on EMG mean? Also nerve conduction test showed differences in ankles. Bad signs?

What does denervation in calf area on EMG mean? Also nerve conduction test showed differences in ankles. Bad signs?

Peripheralneuropathy: What you are describing is not normal. Do you diabetes or any type disease that can cause a peripheral neuropathy? Should discuss with your physician and or a neurologist. Without any other symptoms, unlikely to be from spinal source ...Read more

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I was diagnosed with polyneruopathy after a nerve conduction test and i think a emg . Now my knee is swollen and hurting . What happens now ?

I was diagnosed with polyneruopathy after a nerve conduction test and i think a emg . Now my knee is swollen and hurting . What happens now ?

Could be something: Serious. If you did not injure it, possibilities are gout, pseudogout, or infection. If you had an injury, it is probably bleeding from meniscus or ligament. Or it could be thrombophlebitis. Go see your doctor immediately. ...Read more

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Foot pain for past 1.5 years. Foot tingling started couple months ago. EMG & Nerve conduction done results came back normal. How accurate are the test?

Foot pain for past 1.5 years. Foot tingling started couple months ago. EMG & Nerve conduction done results came back normal. How accurate are the test?

Generally accurate.: These tests are generally pretty accurate however this accuracy depends on the equipment and the skill of the person performing the tests. It is important to remember that even though the test results may show the nerves to have normal function, it is entirely possible to still feel pain. ...Read more

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What could be the cause of tingling/burning in lower legs that only sets in in the evening. MRI, emg, nerve conduction tests all normal. B12 normal.

What could be the cause of tingling/burning in lower legs that only sets in in the evening.  MRI, emg, nerve conduction tests all normal.  B12 normal.

? Diabetes Mellitus: which is one of the most common basis for paresthesias/neuropathy & sometimes becomes a problem well before DM is recognized. Look up neuropathy on Google, study: https://www.healthtap.com/#user_questions/130706 & https://www.healthtap.com/#user_questions/1510334 for background & get HbA1c; optimal HbA1c <5.0%. Go HFLC, study: DietDoctor.com, my answers, optimize NMR lipoproteins, get SBP <120mmHg ...Read more

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Does a nerve conduction study and an emg hurt?

Does a nerve conduction study and an emg hurt?

Maybe uncomfortable: Most patient's tell me it was not as painful as anticipated. The ncs involves electrical stimulation of the nerves, the EMG involves inserting a very small needle into several mucles. I think most patients describe the test as uncomfortable not painful. ...Read more

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Difference between nerve conduction study and emg?

Difference between nerve conduction study and emg?

See below: The EMG portion uses a small needle to directly examine muscle function, and the nerve conduction part uses electrical shocks to measure nerve function. Together the study gives a good idea of the nature of the pathology and location, but can also assess the prognosis and character, and gives often guidance towards an eventual diagnosis. ...Read more

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What is a electromyogram (emg) and nerve conduction studies most commonly used to diagnosis?

What is a electromyogram (emg) and nerve conduction studies most commonly used to diagnosis?

Nerve ; muscle test: Emg/ncs is a test that uses small electric shocks along nerve tracts, and needles into muscles.. While small nerve fibers cannot be accurately tested, middle and large nerves will demonstrate changes in transmission times and rhythm. Muscle, will demonstrate changes in wave form, and resting potential. Neuropathy, polio, myopathy, radiculopathy, entrapped nerves, carpal, cubital/ carpal tunnel, . ...Read more

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EMG report say the sensory nerve conduction amplitude in the Right lower limb were on the lower limits of normal. What does that mean?

EMG report say the sensory nerve conduction amplitude in the Right lower limb were on the lower limits of normal. What does that mean?

Means it's normal: Low or high end of normal is still normal when it comes to that sort of statement on an EMG report. If, however, the clinical situation were explained a bit more or if there were other EMG's you've had in the past that show a distinct change from these results then, there might reason to question the stated "normality." Otherwise, be glad you're done with the test! Good luck. ...Read more

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Left arm weakness for 2 months. Emg/nerve conduction study of neck & arm ruled out nerve/muscle issue. What could it be? Waiting for MRI in 2 weeks.

Left arm weakness for 2 months. Emg/nerve conduction study of neck & arm ruled out nerve/muscle issue. What could it be? Waiting for MRI in 2 weeks.

Arm weakness: You need to be evaluated by a neurosurgeon or spine specialist for determination of the cause and level. Arm weakness is often due to a cervical herniated disc usually at C5-6 or C6-7. Other levels are less common but not rare. There are other possible causes but at 27 the disc is more common. The MRI will be helpful. ...Read more

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Negative EMG/nerve conduction study. Negative MRI of head/neck. Physical therapy no help. Weakness in left arm for 6+ months. What could it be?

Negative EMG/nerve conduction study. Negative MRI of head/neck. Physical therapy no help. Weakness in left arm for 6+ months. What could it be?

Details: Without having more history or context, nor the results of what was done, it is difficult to make an assessment. Suggest you obtain a second opinion, whether it is here on a virtual concierge consult, or with other doctors either in your area or at a tertiary care center like Ohio State. ...Read more

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Left arm weakness. EMG/nerve conduction study neg. Mri brain & c-spine (no contrast) neg. Phys Therapy no help. Whats the next step? What could it be?

Diagnosis: It sounds like there has been attempts, but it really does come down to the specific diagnosis for what is causing you this problem. Only then can things like prognosis and treatment options be known. Have you seen a neurologist? You might also request being referred to more of a tertiary care center if the diagnosis is not clear. ...Read more

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What is the definition or description of: nerve conduction and electromyography?

See below: An electromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. Nerve conduction studies measure how well and how fast the nerves can send electrical signals.

An EMG is done to find diseases that damage muscle tissue, nerves.

A nerve conduction study is done to find damage to the peripheral nervous system. ...Read more

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My body is burning all over, i had a nerve conduction test which was normal, i cannot stand this burning cold sensation in my body. Please help!!

My body is burning all over, i had a nerve conduction test which was normal, i cannot stand this burning cold sensation in my body. Please help!!

More information: It sounds like you are getting to a diagnosis. What did the doctor say that did the nerve conduction test? What medications if any are you on?
Need more information to help. Please reconnect with the doctor who did your testing. If not useful go to ER for quickest evaluation. ...Read more

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Should i possibly get a nerve conduction test?

Should i possibly get a nerve conduction test?

Depends: It really depends on what the possible problem is. Nerve conduction tests are usually done with electromyography. The test is non-invasive and an office procedure that does not require anesthesia. The electromyography portion involves needles. ...Read more

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What does a nerve conduction test and a sleep study show or is ordered for ??? Thanks

Different studies: Two very different studies,
Nerve conduction tests for nerve injury or neuropathy
Sleep study usually done to find sleep apnea or occasionally sleep disorder. ...Read more

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R there alternatives to nerve conduction test ( have TOS+arm pain)? Hear can be very painful. Would drinking gin before change the results of test?

Buck up, Dennis: I've had 3 EMG/NCSs. The nerve conduction test part is mildly uncomfortable. The electromyogram is where they stick little electrodes in e.g. your toe and tell you to move the toe. There ARE painful moments there, but that part usually lasts only about 5 min, 10 tops. Don't drink before. The IMPORTANT question always is: Will the results change MANAGEMENT? Never shy away from asking that. ...Read more

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Podiatrist suspects I have tarsal tunnel and suggests I get a nerve conduction test to diagnose. How likely will the nerve test confirm tarsal tunnel?

Podiatrist suspects I have tarsal tunnel and suggests I get a nerve conduction test to diagnose. How likely will the nerve test confirm tarsal tunnel?

Tarsal tunnel: This is very uncommon, but the clinical history and EMG/NCV can be helpful in determining a distal tibial neuropathy associated with tarsal tunnel syndrome. There are technical challenges at times evaluating this, but typically those occur in older individuals. ...Read more

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What to do if I have to have a nerve conduction test on my upper limbs in hospital?

No preparation need: Your test will be done with mild electrical shocks, and recordings of the stimulation results. An EMG part will use small needles, and the greatest risk might be a small bruise. If done thoroughly and fully, answers for location and severity of nerve problem will be uncovered. ...Read more

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Over the past 3 yrs. I've had dizziness, migraines, spasm, cognitive & memory problems, etc. Neg MRI, LP, nerve conduction test. What's wrong with me?

Over the past 3 yrs. I've had dizziness, migraines, spasm, cognitive & memory problems, etc. Neg MRI, LP, nerve conduction test. What's wrong with me?

Chronic headaches: can be treated in various ways at headache clinics at some local hospitals. Your doc may refer you or search one out yourself. You can also consider natural approaches such as a food sensitivity panel from Great Plains Laboratory in KS. Peace and good health. Biofeedback and clinical hypnosis are also possibilities. ...Read more

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Feet are always numb and sometimes (mostly mornings and night) painful.Test for diabetic neg.Nerve conduction test neg.No spine prob.What tests needed?

Feet are always numb and sometimes (mostly mornings and night) painful.Test for diabetic neg.Nerve conduction test neg.No spine prob.What tests needed?

Not much left: You have eliminated a lot. Just a few more things to do. Consider doing bloodwork, if you haven't. Also consider a pad exam with a local area podiatrist. This is a noninvasive vascular assessment. ...Read more

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Can I have a muscle/nerve conduction test done by my neurologist with an ICD implant?

Is there problem?: Not clear why you might have any concern regarding an EMG test, which has no real absolute contra-indications. If your doctor feels this could be useful, allow this to be done. Doubt you will experience any more issues save mild discomfort due to techniques. ...Read more

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Altered sensation in trunk and limbs, nerve conduction test-normal, bloods ana-positive 160 titre and ena-negative, having mri, what does this mean?

Altered sensation in trunk and limbs, nerve conduction test-normal, bloods ana-positive 160 titre and ena-negative, having mri, what does this mean?

Not much: Not much to go on. Basically everything is normal. The tests so far rule out generalized peripheral nerve diseases and serious autoimmune diseases. The MRI will evaluate for central nervous system causes. ...Read more

Nerve (Definition)

The brain and spinal cord communicates with what is occurring in the internal organs and limbs by nerve fibers where are like electrical wires with insulation (myelin) and the "copper" (axon). Within brain and spinal cord these nerves connect to other nerves via synapses on both axons and dendrites. A nerve can carry information regarding sensations, and ...Read more