Electromyogram (EMG). An electromyogram (EMG) is a neurological test, usually performed by a neurologist, which evaluates the responses of muscles and the nerves that supply them.It is performed by inserting small needles into various muscles that act as stimulating and recording electrodes.he EMG provides the physician with information about the functioning of both the muscle and the nerves that supply that muscle. This can be used to help diagnose various diseases that affect these structures.
Respiratory rate: The number of breaths per minute or, more formally, the number of movements indicative of inspiration and expiration per unit time.In practice, the respiratory rate is usually determined by counting the number of times the chest rises or falls per minute.The aim of measuring respiratory rate is to determine whether the respirations are. normal, abnormally fast (tachypnea), abnormally slow (bradypnea), or nonexistent (apnea).espiratory rate: The number of breaths per minute or, more formally, the number of movements indicative of inspiration and expiration per unit time.
The rate at which breaths occur, usually measured in breaths per minute, is called the ventilation rate, or, by long-standing convention, the respiratory rate (despite that in precise usage ventilation is a hyponym, not a synonym, of respiration). 1  1 Measurement.  2 Normal range.