Spirometry

Breath in... Hold it... OK breath out. Ahhhhhhh

Spirometry is the measuring of breath. This Pulmonary Function Test (PFT) is the most common lung function test. It is used to measure volume of air and speed flow of air in and out of the lungs.

Breathing consists of two main parts Inspiration (inhaling) and Expiration (exhailing). The measurement of both of these can be crucial in aiding treatment or discovery of various breathing ailments.

Spirometry is performed with a device known as a spirometer which usually display their results in the form of graphs called spirograms.