Spirogram vs. Spirometry

Spirogramnoun

A graph of respiratory movement

Spirogramnoun

a recording of breathing made with a spirograph

Spirometrynoun

(medicine) The measurement of the volume of air that a person can move into and out of the lungs, using a spirometer.

Spirometrynoun

The act or process of measuring the chest capacity by means of a spirometer.

Spirometry

Spirometry (meaning the measuring of breath) is the most common of the pulmonary function tests (PFTs). It measures lung function, specifically the amount (volume) and/or speed (flow) of air that can be inhaled and exhaled.