Diffusion Capacity Tests

Diffusion Capacity Tests measure how well oxygen moves from your lungs into your bloodstream. During the test, you breathe in a harmless small amount of a special gas, and then exhale. The test analyzes how much of that gas is transferred, reflecting the efficiency of your lungs' alveoli (tiny air sacs) and blood vessels in gas exchange. It helps doctors detect lung conditions like fibrosis or emphysema and assess lung function. The test is quick, non-invasive, and provides valuable information about the health of your lungs.