ALS can be very difficult to diagnose since there isn’t a specific procedure or test to ultimately establish the ALS diagnosis.
It is only through several diagnostic tests (often used to rule out other diseases that mimic ALS) and a thorough clinical examination that a diagnosis can be established.
According to the ALS Association, a comprehensive diagnostic workup includes most, if not all, of the following procedures:
1 – Electrodiagnostic tests
Electrodiagnostic tests may include electromyography (EMG) to evaluate the electrical activity produced by skeletal muscles, and nerve conduction velocity (NCV) – also called nerve conduction study (NCS) – to determinate the speed of conduction of an electrical impulse through a nerve.
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