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Doctor insights on: How To Read Emg Results

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I had an emg and results show 'unremarkable'. What does that mean?

I had an emg and results show 'unremarkable'. What does that mean?

Nothing: Electromyogram and nerve conduction studies identify where nerves have been damaged and/or are undergoing repair.  unfortunately, these studies cannot detect sites of chronic pinching (impingement), which is painful but does not alter neural tissue nor cause positive study data.  these tests cannot rule out chronic impingement, which is common. See my board on quora. Com about this medical issue. ...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 to do if I had an emg done & I was questioning what some of the results meant, so what is prolonged latency?

Talk to your doctor: Prolonged latency means one of your responses was delayed. In isolation this abnormality doesn't tell a whole lot. If you still have questions about the results you need to talk to your doctor for additional clarification, as only that type of dialogue would be specific to you and your test ...Read more

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Could spinal nerve issues be present even if you have a normal EMG result?

Could spinal nerve issues be present even if you have a normal EMG result?

Yes: Yes, it depends where the problem is, how long since the injury or disease process started and what is being tested on the NCS/EMG ...Read more

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Is it possible/likely for someone with benign fasciculation syndrome to have normal/negative emg results?

Yes.: A person with benign fasciculation syndrome would have a normal EMG, whereas someone with ALS would have signs of generalized denervation on EMG. ...Read more

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Neuro docs-can a patient have cipd with normal emg and ncs test results? Thank you!

CIDP: Yes, in some cases electrophysiological studies fail to show any evidence of demyelination. Though conventional electrophysiological diagnostic criteria are not met, the patient may still respond to immunomodulatory treatments. In such cases, presence of clinical characteristics suggestive of cidp are critical, justifying full investigations, including sural nerve biopsy. ...Read more

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My emg result as come back saying I have chronic denervation in my C5 and c6, what does this mean??

Old nerve damage: The EMG, where a needle is inserted into muscle tells the doctor how healthy the muscles are and if they are getting enough nerve signal. If there is early nerve damage then the muscle at rest will make noises, while if the damage is chronic then the muscle will be quiet at rest. Chronic damage will also sound different when the muscle is contracted. This allows the doc to tell when damage was ...Read more

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Can taking clonazepam before an emg or EEG test affect results? I only take a 1/4 piece of. 5mg tablet. I only take it as needed.

Can taking clonazepam before an emg or EEG test affect results? I only take a 1/4 piece of. 5mg tablet. I only take it as needed.

Relaxants: Anxiety medications can make you more relaxed and can effect the eeg or EMG that you are having. If you only take them as needed don't take them. If you need to make sure the technician doing the study knows so the physician reading the study will be able to interpret it correctly. Hope this helps. ...Read more

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Today a doctor performed an ncv/emg when my leg was ice cold. The cold leg returned abnormal results. Are these results accurate?

They may not be: We always recommend having warmed up limbs for electrical studies to reflect the best results possible. Often times we will use warm towels or blankets if towels are not possible for some reason. The room should also be at a comfortable temperature to begin with so we try to avoid starting out a room with a study if there's been no activity in it before hand. ...Read more

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The result my emg {NCS the right and left MIdian nerve showed delay in distal sensory latencies across the wrists as copared ulner nerves}?

The result my emg {NCS the right and left MIdian nerve showed delay in distal sensory latencies across the wrists as copared ulner nerves}?

Median neuropathy: That usually means that there is damage to the median nerves causing them to not feel sensations properly. The most common causes are carpal tunnel syndrome, diabetes, hypothyroidism, and heavy metal toxicity ...Read more

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I hurt my forearm /elbow 7mth ago just had an emg 2weeks ago it read 26 on the radial sensory nerve! Does that mean I'm going to need surgery? Pain

I hurt my forearm /elbow 7mth ago just had an emg 2weeks ago it read 26 on the radial sensory nerve! Does that mean I'm going to need surgery? Pain

Not necessarily: The main reason to have surgery is to release the nerve if your doctor thinks it is pinched. In most cases surgery is not necessary for the nerve to heal. If slowing of the nerve is the only abnormality found, surgery would be the last option after trying physical therapy, medications and other non-invasive modalities. Discuss the test results with your doctor. ...Read more

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Does an emg detect nerve issues or can it detect muscle disorders also? How do the results show on emg? Muscles so weak after small activity n spasms

Does an emg detect nerve issues or can it detect muscle disorders also? How do the results show on emg? Muscles so weak after small activity n spasms

EMG/NCV: The test are combined as EMG and nerve conduction velocity. They often point to possibilities and may not always provide a final diagnosis. They provide insight into defects but not always the cause. Suggest see a neurologist. ...Read more

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If I have poor circulation in one leg, making it colder than the other, would it affect the results of an EMG/NCS?

Probably Not, But...: Although temperature does play a role in the outcome of an EMG/NCV study, most neurophysiologists check temperature during the test to identify this as a source of error. To some extent, the answer to this question depends on the results of the test and the skill set of the person doing the test. I would discuss it with the doctor who performed the test, if possible. Stay healthy! ...Read more

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Is an EMG usually ordered when symptoms of cervical radiculopathy are consistent with MRI results and the results of a physical exam?

No, not often.: EMG/NCV study can be helpful in diagnosing cervical radiculopathy. However, in my Practice I have found these to be very rarely helpful. The clinical exam is much more helpful and predictive of good outcome from surgery. Insurance companies will many times require this test to be positive before they authorize surgery which means denials for many patients who could benefit from surgery. ...Read more

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What are the possibilitlies of an MRI missing anything wrong maybe mistake by radiologist? Is there much to worry about if emg and EEG results are ok?

What are the possibilitlies of an MRI missing anything wrong maybe mistake by radiologist? Is there much to worry about if emg and EEG results are ok?

Looks alright: Do not know precise reasons for your three diagnostic studies, but you should be reassured by normal results. Regarding the mri, a normal report would eliminate any major pathology such as a tumor, hemorrhage, or abscess. Doubt radiologist was mistaken. Could it be that you might have migraine as explanation for your headaches, and? Other symptoms? ...Read more

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Dermatomysositis. Wat are the blood tests needed, EMG results wheldl, refused tisue test, &muscle biop. Wat are genetic blood tests, may explain kids sympt

Dermatomysositis. Wat are the blood tests needed, EMG results wheldl, refused tisue test, &muscle biop. Wat are genetic blood tests, may explain kids sympt

Several things: But first, the muscles break down. Measuring muscle proteins in the blood (CPK, Myosin) will be positive if the disease is active. The pattern of the pain, violet eyelids, sky high muscle enzymes would be pretty diagnostic. Biopsy (which isn't taht bad) would be definitive. EMG (as painful as biopsy) would just show sick muscle. ...Read more

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I worry about my occasional tongue fasciculations since I've read they are only due to als. I had a clean emg on my tongue yesterday.?

I worry about my occasional tongue fasciculations since I've read they are only due to als. I had a clean emg on my tongue yesterday.?

Fasciculations: Tongue fasciculations are not only caused by ALS, but one would think so, after reading the internet. If the EMG is normal that is a very reassuring sign. Sometimes medications can cause these symptoms too.

If that is the only symptom you have right now there is nothing to be concerned about.

Lykke til! ...Read more

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Rt side of body face to foot is skinnier than left but all results are coming out normal terrified of neuromuscular disorder but neuro says emg clean?

Rt side of body face to foot is skinnier than left but all results are coming out normal terrified of neuromuscular disorder but neuro says emg clean?

Congenital?: There's several possibilities you may have been born this way are just now noticing a difference in size or this may be a matter of how you perceive left and right on your body. If you do not get this sorted out you might want to get a second opinion from another specialist. ...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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Does nerve conductive study and emg prove nerve damage or nerve pain like sciatica? Can you have sciatic pain and normal results ftom these tests

Does nerve conductive study and emg prove nerve damage or nerve pain like sciatica? Can you have sciatic pain and normal results ftom these tests

Shows function loss: Emg and nerve conduction studies are very good at detecting nerves that have been damaged to the point where the nerves are losing function, but are not always sensitive to less severe damage that is causing nerve irritation without loss of function, or to disease elsewhere in the body, such as in the brain or spinal cord. ...Read more

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Emg study for puffy feet reads. A fairly symmetric mild sensorimotor peripheral neuropathy with primarily axonal loss features. What are options?

Emg study for puffy feet reads. A fairly symmetric mild sensorimotor peripheral neuropathy with primarily axonal loss features. What are options?

It depends: The first thing would be to address possible underlying causes such as diabetes. There are medication which can help to minimize any symptoms of the neuropathy. ...Read more

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Have l5s1 protusion back\leg pain\footdrop. Mri doesn't confirm drop. Emg\nerve study normal. What should be next step? Do symptoms clash with test results

Have l5s1 protusion back\leg pain\footdrop. Mri doesn't confirm drop. Emg\nerve study normal. What should be next step? Do symptoms clash with test results

Epidural injection.: The imaging studies give info to help with a diagnosis. All the symptoms should be considered. A foot drop is due to muscle failure which is most often caused by pressure on a nerve, usually from a disc. They should treat your clinical findings in this case ...Read more

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Emg came back normal, results stated no neuropathy (left leg below knee). Does that leave me with a mild case of crps? See pictures in health file.

Emg came back normal, results stated no neuropathy (left leg below knee). Does that leave me with a mild case of crps? See pictures in health file.

Maybe: I certainly would not hang my hat on EMG results - they can be affected by many factors. Neuropathy can take awhile to show pos. On emg.
There certainly is a chance it is crps.
Hope this helps. ...Read more