This test is a measure of how the body reacts to an oxygen content of 15%. This content is equal to the high oxygen content in the mountains or in an airplane. The exam takes about an hour and a half.
No special preparation is required for this test. You can eat and drink normal before the test. It is also allowed to take your medication as usual.
First, your lung function will be measured with the spirometer. The heart rhythm, blood pressure and oxygen saturation will be monitored during the test. The analyst / physician will also do blood gas analysis (2 times). The mouthpiece is connected to a balloon that fills with air containing 15% oxygen. (By comparison, normal inhalation air contains approximately 21% oxygen). You will have to inhale and exhale quietly for half an hour.