- After completing the lung volume and spirometry testing, you will be asked to breathe normally on the mouthpiece
- The shutter will close. The shutter is closed for a second while you continue to breathe normally against the shutter
- The shutter will open and you will return to normal breathing
- You will then be asked to take a SLOW deep breath in until your are completely filled (TLC)
- The shutter will close and you will relax against it
- The shutter will then open and you will slowly sigh out a little air
- The shutter will close and you will again relax against it
- This will be repeated until you are empty
- You will then take a breath in and sit back off of the mouthpiece
Learn more about the pressure volume test.
