When evaluating a patient’s respiration, the medical assistant must check for the depth. Respiration depth is defined as: The breathing pattern The number of cycles of inspiration and expiration per minute The stroke volume measurement of the amount of air per respiratory cycle the time between each pulse beat measurement of the amount of air per respiratory cycle Evaluation of respiration must include: the rate (cycles of inspiration and expiration per minute), rhythm (breathing pattern), and depth (measurement of the amount of air per respiratory cycle).