Whole Body Plethysmography: This test involves being enclosed inside a glass chamber, where the volumes and pressure of the chamber are known. Starting with normal breathing through a mouthpiece, the breathing rate is increased to a pant of more than 1 breath a second. While panting continues, a shutter closes the mouthpiece for a few […]
Nitrogen washout, breathing Oxygen: This test involves normal breathing through a mouthpiece with 100% oxygen for a few minutes. The amount of nitrogen which is in the air will always be the same as the nitrogen inside your lungs. As you breathe 100% oxygen, the nitrogen is flushed out of your lungs and measured as […]
This test measures the total size of the lungs including the areas inside the lung which cannot be emptied. There are different ways of measuring lung volumes. One breathing oxygen. One involves being enclosed in a glass box where pressure changes in the lungs are measured. One involves breathing Helium, this method is now less […]
