Pulmonary plethysmography

Abstract

Lung (or pulmonary) plethysmography is a test used to measure how much air you can hold in your lungs. Lung plethysmography helps healthcare providers assess patients with lung diseases, which are often associated with a decrease in total lung capacity (TLC). Plethysmographic measurements are based on Boyle’s Law, a principle that describes the relationship between the pressure and volume of a gas.