Several investigations in the past. have looked for a correlation between height. and arm span (1-5). Such correlation is. useful to predict height in subjects in whom. it cannot be reliably measured due to. debility or structural defects (1-3).
Net realizable value. Net realizable value (NRV) is a method of evaluating a fixed or current asset's worth when held in inventory, in the field of accounting.
Nerve conduction velocity (NCV) is a test to see how fast electrical signals move through a nerve. Patches called surface electrodes are placed on the skin over nerves at different spots. Each patch gives off a very mild electrical impulse. This stimulates the nerve.