RNS (Repetitive Nerve Stimulation) Test


All Neuro-Electrophysiological Tests are available at clinic. These are done under expert guidance of experienced neurologist

Dr Priya Gupta (DM, Neurology, AIIMS)


Patient pre-test instruction

RNS (Repetitive Nerve Stimulation) Test is done for diagnosis of Myasthenia Gravis & evaluation of symptoms like:

  • Weakness & Fatigability

  • Ptosis (Drooping of eyelids)

  • Diplopia (Double vision)

  • Dysphagia (Difficulty in swallowing)

  • Dysarthria (Slurred speech)

EEG: The electro-encephalography (EEG), also known as a brain wave test, is graphical record of the electrical activity of the brain. It records brain’s electrical activity and pattern and helps in making diagnosis and differentiating various disorders like epilepsy, brain infections, sleep disorders etc.


VEP: Visual evoked potentials (VEPs) is a test to measure the brain wave activity that occurs in response to visual stimulation. It helps in diagnosing and evaluating disease related to eye and brain.


BAER: Brainstem auditory evoked response (BAER) is a test to measure the brain wave activity that occurs in response to sound. It helps in diagnosing and evaluating disease related to brain and hearing problem.


Prior to Test

  • Tell your doctor about the medications you are taking

  • Wash your hair the night before the test

  • Take normal diet prior to the test.


Description of Test


Before an EEG begins, technologist attaches approximately 16–21 electrodes to a person's scalp using an electrically conductive, washable paste. The electrodes are placed on the head in a standard pattern based on head circumference measurements.
For the test, a person lies on a bed, padded table, or comfortable chair and is asked to relax and remain still while measurements are being taken. During the test procedure, a person may be asked to breathe slowly or quickly. Visual stimuli such as flashing lights or a patterned board may be used to stimulate certain types of brain activity. Throughout the procedure, the electroencephalography unit makes a continuous graphic record of the person's brain activity, or brain waves


Electrodes are placed on your scalp. The earphones give off a brief sound and electrodes record the brain activity. You do not need to be awake for this test.


Electrodes are placed on your scalp and on each earlobe. The earphones give off a brief sound and electrodes record the brain activity. You do not need to be awake for this test.


Approximately time needed for the test


An EEG usually takes no more than one hour, although long-term monitoring is often used for diagnosis of seizure disorders.


Time needed for the test is not more than half an hour.


Time needed for the test is not more than half an hour.


After Test

  • Once the test is complete, you will be able to resume your daily activities.



  • Your doctor will analyze the test and the will get report in a day or two.


Swastik Medical Centre

Vasundhara Sector 10 D/5, 

Ghaziabad, UP-201012

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For Appointment 
Call: 8882162151

© 2017 Swastik Medical Centre

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