How will a DCLO test feel?

How will a DCLO test feel?

Richard Sheldon (Medical Advisor to the CA State Respiratory Care Board) gives expert video advice on: Why would my doctor order peak flow testing?; How is a DCLO or diffusion capacity test performed? and more...

When people take a diffusion capacity test as part of their pulmonary fuction test, they really don't feel anything. They don't feel the gas, they don't taste the gas, it doesn't make them dizzy, it doesn't do anything that would be noxious. If they have trouble holding their breath for ten seconds they may find that to be uncomfortable, but by and large there's nothing to feel.