What gas or gas mixture does a patient breathe when the body plethysmography method is used?
A) room air
B) 100% N2
C) 100% O2
D) He-O2 mixture

Question

Quizplus · Accepted Answer

The body plethysmography method involves measuring changes in pressure inside a closed chamber when a patient breathes in and out. The patient breathes in room air, which is a mixture of gases including oxygen (21%) and nitrogen (78%). Therefore, the patient does not breathe any specific gas or gas mixture during this test.

What Gas or Gas Mixture Does a Patient Breathe When