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Doctor insights on: How Is A Emg Test Done And Why

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I just had an EMG test done and the doctor that performed it first checked my reflex in my ankle and said it was reduced but my EMG was normal. How?

I just had an EMG test done and the doctor that performed it first checked my reflex in my ankle and said it was reduced but my EMG was normal. How?

Abnormal reflexes: An EMG measures muscles; reflexes measure nerve activity. Hypothyroidisnm can cause slowed reflexes. Nerve damage at age 20, due to a disease of nerves, such as a neuropathy, is unlikely, but can be checked for by your neurologist. That test is a nerve conduction study (NCS). If NSC is abnormal then you will need more studies to (hopefully) determine the cause. ...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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Is it ok to take flexeril (cyclobenzaprine hcl) on the day of emg after the test is done?

Is it ok to take flexeril (cyclobenzaprine hcl) on the day of emg after the test is done?

Yes: Yes, after you arrive home I know of know reason that u cannot take your prescription Flexeril (cyclobenzaprine hcl) if needed after emg/ ncv test. Call your physician if you are worried about drug interactions. ...Read more

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Besides an emg and MRI what other test can be done to locate pinched nerves in elbow?

Besides an emg and MRI what other test can be done to locate pinched nerves in elbow?

NONE really.: Pain and numbness can't really be found with modern technology. It requires a complete pe and beginning the healing process. Janet travell, md myofascial therapy protocols are designed to treat all types of "joint pain." begin a self-care self/pro massage, chiropractor, heat, epsom soaking, stretching. I use acupuncture! ...Read more

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Had an nerve test and emg done on both arms. Nerve on inside of left elbow would not responde to the stimulation. What does that mean and causes?

Had an nerve test and emg done on both arms. Nerve on inside of left elbow would not responde to the stimulation. What does that mean and causes?

Pinched nerve: The nerve on the inside of the elbow (ulnar nerve) can get pinched in the elbow as it goes thru a bony groove in that area. Depending on what symptoms were present prior to the test treatment will vary. Severe cases require surgical decompression. Discuss these results with your physician. ...Read more

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Besides an emg what other tests can be done to determine what nerve or nerves are being compressed in the elbow my x rays just showed arthritis of the?

Besides an emg what other tests can be done to determine what nerve or nerves are being compressed in the elbow my x rays just showed arthritis of the?

NCS: Nerve conduction studies are often done with EMG to get a better idea of whether or not nerves are involved. Here's a link to information on nerve conduction studies: http://abcnews. Go.Com/health/diagnosingpain/story? Id=4040291#.Ulffqyf7kag. ...Read more

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Will an EMG test diagnose nerve damage causing cauda equina symptoms or would NCV have to be done too?

Will an EMG test diagnose nerve damage causing cauda equina symptoms or would NCV have to be done too?

EMG/NCV: These tests look at muscle activity and time needed for nerve conduction. Abnormalities usually take several weeks to show up on the test. So if you have had symptoms from compression in caudal equina for quite some time, it may reflect on these studies. (on the other hand 'caudal equine syndrome' is a surgical emergency and needs to be addressed right away. ...Read more

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Pinched sciatic nerve. Neg emg test. Vibration sensation in foot. Would cortisone shot relieve vibration and enpingment? Have done pt for 5 months.

Pinched sciatic nerve. Neg emg test. Vibration sensation in foot. Would cortisone shot relieve vibration and enpingment? Have done pt for 5 months.

Possibly: Have a pain specialist review your history, exam and MRI results and see if a targeted injection could help. Stop the pt. It obviously is a waste of time and money. ...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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I had a midface lift 8 weeks ago. I got buccal or zygomoticbranch injury. Now, my cheek and the corner of the lip have become slightly droopy and I have got a weak smile onthe right side. Should I get an EMG test done for these nerves?

I had a midface lift 8 weeks ago. I got buccal or zygomoticbranch injury. Now, my cheek and the corner of the lip have become slightly droopy and I have got a weak smile onthe right side. Should I get an EMG test done for these nerves?

Should resolve: Sorry you are experiencing facial weakness after elective surgery. While there are exceptions to every good rule, facial nerve injuries are rare, and when they happen better than 90% resolve in a few months. It is too soon for an emg, because no matter the results, continued observation is still likely the best treatment. Keep in close contact with your surgeon, and monitor any progress or lack of. ...Read more

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25 yo. Diagnosed Peripheral neuropathyUnknown cause. Blood work done. Emg nerve test on legs. Doc said not to worry about it. What should I do now?

Causes of neuropathy: Include diabetes, toxic exposure (including excessive vitamin B6), thyroid disease, nutritional deficiency, autoimmune disorder, infectious (eg. Lymes disease). etc.
Sometimes its helpful to get a second neurological evaluation to review the NCV, labs and to hopefully identify a treatable condition. ...Read more

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Left entire body pain for last 6 years (eeg emg MRI done, appear normal) but blood test shows dhea levels low, vit d very low and vit B12 borderline?

Left entire body pain for last 6 years (eeg emg MRI done, appear normal) but blood test shows dhea levels low, vit d very low and vit B12 borderline?

See pain management: Specialist or east-west integrative medicine specialist for evaluation, diagnosis and management. It is a chronic condition that needs thorough examination and investigation.
Take care. ...Read more

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How do I treat peripheral neuropathy if I don't know the cause? Emg test and blood work done. Doc isn't concerned. No alcohol diabetes vit d deficient

How do I treat peripheral neuropathy if I don't know the cause? Emg test and blood work done. Doc isn't concerned. No alcohol diabetes vit d deficient

Idiopathic PN: Not all causes of neuropathy are found. A large number of cases has no apparent cause. Some of these may improve. They are not normally cause for concern.

You can't cure idiopathic neuropathy, but if there are pain symptoms, these can be treated.

For more information, see this link:
http://www. Mayoclinic. Org/diseases-conditions/peripheral-neuropathy/basics/definition/con-20019948 ...Read more

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How is emg done?

Carefully: Emg or electromyography is a test done that requires a trained physician (pmr or neuro md) to insert a thin needle electrode into specific muscles to determine whether there is muscle, motor nerve, (or nm junction with special techniques) injury. It can be uncomfortable at times and is usually combined with a ncs (nerve conduction study) test to physiologically examine peripheral nerve and muscle. ...Read more

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WHAT IS AN EMG Test?

WHAT IS AN EMG Test?

Electromyogram: It is a test to find problems in muscles and between nerves and muscles, often done with nerve conduction velocitiy (NCV).

http://www. Webmd. Com/brain/electromyogram-emg-and-nerve-conduction-studies ...Read more

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Does a emg test hurt?

Does a emg test hurt?

A little bit: The level of pain varies from patient to patient and with the doctor who is performing the test. Most patients find the discomfort relatively mild and no big deal. ...Read more

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Is an emg test painful?

Uncomfortable: Like a lot of medical tests emgs are not fun. I tell patients there will be some discomfort but it should be tolerable and not last too long. ...Read more

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What does a emg test show?

EMG: An electromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. ...Read more

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What is an emg nerve test used for?

What is an emg nerve test used 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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Emg/ncv test will show what exactly?

See below: Ncv, or nerve conduction velocity, is an electrical diagnostic test that provides information about abnormal conditions in the nerves.

Emg, or electromyography is a technique for evaluating and recording the electrical activity produced by muscles. ...Read more

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Why did it hurt while getting my emg done?

Usually does: They put 2 electrodes on your arm at a known fîxed distance. They then shoot a pulse of elèctricity down the nerve and carefully measure then time. Knowing the precise distance you can calculate the nerve conduction velocity. When you are working on a sensory nerve it can be quite painful. ...Read more

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How much time does pain from emg test last?

Days at most: There shouldn't be any persistent pain from an EMG other than some muscle soreness (as if you have worked out too hard) that responds to NSAIDs and goes away in a few days at most. There used to be significant concern about bleeding in the muscles, especially those along the vertebrae, but studies have shown a very low rate of these bleeds, even in patients on powerful anticoagulant medication. ...Read more

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For what length of time does pain from emg test last?

EMG Pain: Very fine needles are used to perform an EMG or electromyography. Most practitioners will use a type of needle which is covered by a material like teflon with only the tip of the needle exposed. This helps with patient comfort. Also, only a portion of the needle beyond the tip enters the muscle and only transiently. Stretching the skin prior to needle insertion helps. Any pain is temporary. ...Read more

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I have to take a electromyography (emg) test. How do I prepare?

Relax: First you need to show up. Be prepared to sit relatively still for about an hour. The test works best if you relax during it. It is very well tolerated but there may be aspects that are uncomfortable for a very short time. The EMG portion is done with a needle that measures muscle activity. It should not be very painful. Most folks tolerate it well. The results are very useful for your treatment. ...Read more

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If I am having an emg done, should I avoid any types of medications?

If I am having an emg done, should I avoid any types of medications?

Perhaps: Some physicians prefer that you hold blood thinners, such as aspirin, coumadin, warfarin, plavix, aggrenox, & others, or if you take Mestinon (pyridostigmine) for myasthenia gravis, you should check with the office several days ahead of your appointment to be certain. Avoid the use of topical creams and lotions on the day of the test. Prescription and otc pain medicines do not affect the test results. ...Read more

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Does an EMG or NCV have to be on a specific part or can be done on the whole body to find the problem?

Depends: When evaluating for a systemic disease, the EMG/NCV is often done on nerves and muscles of at least one arm and one leg as well and sometimes the back. Some diseases can be diagnosed with a local study. It depends upon the symptoms and the diagnostic concerns. ...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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I'm not getting relief of pain. Is it common to be negative for an emg test and then be tested a year later as positive? How reliable are these tests?

Complex issues: The quality of an EMG depends upon who is doing it. Can it be negative at one time and positive at another? Yes. The problem could be evolving. However, it depends on the details of "positive".

Pain relief depends on the cause. Also, "not getting relief" over what span of time? Weeks? Years? Makes a big difference. Chronic pain will fail treatment unless the cause is being addressed. ...Read more