ASSESSMENT & DIAGNOSTICS 128: Spirometry, Phlegm, Deficient Yin Causing Liver Wind, Sleep

Spirometry is a common test used to check how well your lungs work. It measures how much air you breathe in, how much you breathe out and how quickly you breathe out. Healthcare professionals use spirometry to diagnose asthma, chronic obstructive pulmonary disease (COPD) and other conditions that affect the ability to breathe. Healthcare professionals also may use spirometry from time to time to check the condition of your lungs and see whether a treatment for a lifelong lung condition is helping you breathe better.