EMG & NCV In Scottsdale & Sedona, AZ

Two diagnostic tests commonly used in the fields of neurology as well as clinical neurophysiology are the EMG (Electromyography) and NCV (Nerve Conduction Velocity) test. According to the professionals at the Valley of The Sun Institute for Pain Management – with offices in Sedona and Scottsdale, AZ, these assessment tests are used to evaluate nerve and muscle functioning which can then be used in diagnosing/monitoring a variety of neurological/neuromuscular conditions and issues.

Understanding EMG and NCV Tests

EMG - Electromyography

An Electromyography diagnostic test is used in the measurement of electrical action/activity in the muscle(s) being tested. A fine needle (a.k.a. electrode) is inserted into the muscle to measure various electrical signals that are recorded when the muscle is at rest and again when contracting.

An Electromyography diagnostic test can also help diagnose conditions like muscular dystrophy, myasthenia gravis, peripheral neuropathy, etc. – by -

  • Evaluating muscle functioning.
  • Detecting abnormal/irregular electrical activity in muscles may indicate a nerve injury or muscle disorder/issue. 
  • Differentiating between nerve and muscle issues.

NCV - Nerve Conduction Velocity

The Nerve Conduction Velocity diagnostic test is used to measure/record the electrical speed at which impulses travel along a nerve's pathway. During an NCV assessment test, dual electrodes are placed on the skin atop the affected nerve that is to be measured. A small electrical impulse is applied to one electrode, and the response to the electrical impulse will be recorded on the other electrode.

By measuring the speed and intensity/aptitude of the affected nerve's response, a Nerve Conduction Velocity test can help determine if there is the presence of damage or dysfunction. Nerve Conduction Velocity testing is an effective diagnostic tool when used to evaluate peripheral nerve functioning  to determine a diagnosis of =

  • Carpal Tunnel Syndrome.
  • Diabetic Neuropathy.
  • Guillain-Barré Syndrome.

Both EMG and NCV tests are typically performed by trained medical professionals. The results of these diagnostic tests can reveal valuable data that is useful in either identifying or monitoring neuromuscular or neurological disorders/conditions. Additionally, it is helpful in providing information that guides specific treatment decisions and monitoring the progression of an existing issue. 

Contact Valley of The Sun Institute for Pain Management Specialists Today

It's important to consult with a healthcare specialist if you have symptoms or conditions that may benefit from these types of tests. For more regarding EMG and NCV diagnostic testing, contact Dr. Estelle Farrell of the Valley of the Sun Institute for Pain Management at 480-955-1515 or online – with convenient locations in Sedona and Scottsdale, Arizona.

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