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The metric, Nerve Conduction Velocity (NCV), results from a test to see how fast electrical signals move through a nerve. The NCV test is used to diagnose nerve damage or destruction. The result is usually reported in units of meters per second. The inputs to this equation are:
- A = cross-sectional area (typical units of Sq
- I = Capacitance
- d2 V/dt2 = Second derivative of membrane voltage to time (assumed here to be a constant)
- R = Resistance
The Nerve Conduction Velocity test is used to diagnose nerve damage or destruction. Occasionally, the test may be used to evaluate diseases of nerve or muscle, including myopathy, Lambert-Eaton syndrome, or myasthenia gravis.