What To Expect

What Will Happen During My Test?

Nerve Conduction Study (NCS):

This study enables the measurement of peripheral nerve function by stimulating nerves using an electrical stimulator and the recording of nerve signals from the surface of the skin using electrodes. This study is non-invasive and no after-effects are expected. NCS is sometimes performed in isolation but is often accompanied by EMG depending on the clinical presentation and NCS findings.


This study enables the measurement of muscle function and the corresponding nerve supply to the muscle. EMG is performed by inserting a fine needle electrode into the muscle and recording the muscle activity while the muscle is both at rest and also while activated. This study can be uncomfortable and may result in minor bruising and tenderness. If performed, EMG is always performed after NCS and never in isolation.


qEMG is an off-line computerised analysis of a recorded EMG trace. This technique is typically performed on EMG recordings if the initial EMG analysis is equivocal and further analysis is required to make a definitive assessment of the EMG recording. Whether or not qEMG is performed makes no difference to the experience of the patient undergoing the EMG study.

What to Expect

Once the testing is completed, the Neurologist will evaluate your results. A comprehensive report will be sent to your referring Doctor, the majority of our tests are reported within 24 hours; please allow longer for more complex studies to be reported.

All studies performed are analysed by our Neurologist and a clear, comprehensive neurophysiological report is then provided to your referring Doctor within 24 hours.  Complex studies especially those requiring qEMG may require longer reporting and analysis time.     

Educational Videos

Coastal Neurophysiology is a provider of clinical neurophysiology, specialising in Nerve Conduction Studies (NCS) and Electromyography (EMG). These videos have been created to give clear, non-technical explanations of what is involved in NCS and EMG studies.