A variety of ocean phenomena- both explained and unexplained have intrigued people around the world. Some of these most famous ocean mysteries have been a subject of great debates and discussions. Learn about ten such mysteries of the oceans. A variety of ocean phenomena- both explained and unexplained have intrigued people around the world. Some of these most famous ocean mysteries have been a subject of great debates and discussions.
A nerve conduction study (NCS), also called a nerve conduction velocity (NCV) test--is a measurement of the speed of conduction of an electrical impulse through a nerve. NCS can determine nerve damage and destruction.
The resulting electrical activity is recorded by the other electrodes. The distance between electrodes and the time it takes for electrical impulses to travel between electrodes are used to calculate the speed of impulse transmission (the nerve conduction velocity, or NCV). decreased speed of nerve conduction indicates nerve disease. The NCV test is often done at the same time as an electromyogram (EMG) in order to exclude or detect both nerve and muscle conditions. The interpretation of an abnormal NCV test depends on why the test was done in the first place.