Electromyography (EMG)

Nerve Conduction Test

Electromyography (EMG) is a diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons). Motor neurons transmit electrical signals that cause muscles to contract. An EMG translates these signals into graphs, sounds or numerical values neurologist Dr. Ken Sharlin interprets.

Electromyography (EMG) Diagnostic Procedure

An EMG uses tiny devices called electrodes to transmit or detect electrical signals. During a needle EMG, a needle electrode inserted directly into a muscle records the electrical activity in that muscle. A nerve conduction study, another part of an EMG, uses electrodes taped to the skin (surface electrodes) to measure the speed and strength of signals traveling between two or more points. EMG results can reveal nerve dysfunction, muscle dysfunction or problems with nerve-to-muscle signal transmission. 

Electromyography (EMG) in Springfield, Missouri

Purpose of Procedure

At Sharlin Health and Neurology many times a patient’s primary care doctor orders an EMG if they have signs or symptoms that may indicate a nerve or muscle disorder. Such symptoms may include:

  • Numbness or Tingling
  • Weakness in Muscle
  • Muscle Cramping or Pain
  • Certain Types of Limb Pain
Electromyography (EMG) in Springfield, Missouri

EMG: What is Learned

After we conduct an EMG we find that the results of this procedure are often vital to help correctly diagnose or rule our a number of serious medical conditions such as:

  • Diseases affecting the connection between the nerve and the muscle, such as myasthenia gravis
  • Muscle disorders, such as muscular dystrophy or polymyositis
  • Disorders of nerves outside the spinal cord (peripheral nerves), such as carpal tunnel syndrome or peripheral neuropathies
  • Disorders that affect the motor neurons in the brain or spinal cord, such as amyotrophic lateral sclerosis or polio
  • Disorders that affect the nerve root, such as a herniated disk in the spine
Electromyography (EMG) in Springfield, Missouri

Patient: What To Expect

The following explanations can help you understand what will happen during the exam:

  • Electrodes. The neurologist or a technician places surface electrodes at various locations on your skin depending on where you’re experiencing symptoms. Or the Dr. Sharlin may insert needle electrodes at different sites depending on your symptoms.
  • Sensations. The electrodes will at times transmit a tiny electrical current that you may feel as a twinge or spasm. The needle electrode may cause discomfort or pain that usually ends shortly after the needle is removed.
  • Instructions. During the needle EMG, Dr. Sharlin will assess whether there is any spontaneous electrical activity when the muscle is at rest — activity that isn’t present in healthy muscle tissue — and the degree of activity when you slightly contract the muscle.He will give you instructions on resting and contracting a muscle at appropriate times.

Why Wait Months? Schedule With Us Today!

Now accepting self-referrals for neurology consultations and diagnostic procedures and testing.

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Protect Against Coronavirus: Doing our Part to Help you

 
In these difficult times we want to share with you some brief bullet-points about Sharlin Health and Neurology and COVID-19:
  • First and foremost, we want you to know that the safety and well-being of each and every one of you is number one importance to us. If you have a chronic lung condition or another health reason that would make you susceptible to the more severe effects of the coronavirus, we want you to stay at home.
  • Sharlin Health and Neurology is considered an “essential” business because we provide critically needed care to those with neurological disease in our community. Despite the threat of the coronavirus conditions like Alzheimer’s, Parkinson’s disease, seizures, migraine, MS, and other neurological diseases do not go away. We are a privately-owned neurology practice here to serve our community.
  • We follow all CDC guidelines for protection against the dissemination of coronavirus. There have not been any known cases of coronavirus in our office, among staff and those customers who have entered our door. 
  • We have six available exam rooms in our clinic and every effort will be made to prevent patients from having to stay in our waiting room. We can move you quickly from the reception desk to a private exam room, and have the doctor meet you there.
  • If you are sequestered at home, it may be possible to visit with you by telemedicine. We have the capability of using a telemedicine portal though the smart phone or computer that is HIPAA compliant and allows us to see you and speak with you. Alternatively, we can speak by telephone. Please ask our receptionist.
  • If you do come to our clinic for a doctor visit or a need a test please do not touch any surfaces you can avoid touching, and come by yourself or – if you do need to have someone with you – have them bring you to the door and we will help you from that point. If they wait in their vehicle, we can call them when you are finished.
  • If you have had contact with a person with known or suspected COVID-19, have had contact with a person coughing or with fever in the past 14 days, or you yourself have a fever, cough, or runny nose in the past 14 days, please let us know and we will either reschedule you or schedule you a telemedicine visit. 

If you think you may have been exposed to COVID-19 please reach out to your nearest medical center. We will not be testing patients at Sharlin Health and Neurology. 

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Despite limited hours for the month of April, we will be checking telephone messages and messages on our patient portal, including prescription refill requests. As always, if you have an emergency please go to your local emergency room or urgent care clinic.
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