During which phase of a capnograph does alveolar gas containing carbon dioxide (CO₂)mix with gas from the anatomical airways and the CO₂ concentration rises?
A) Phase 1
B) Phase 2
C) Phase 3
D) Phase 4

Question

Quizplus · Accepted Answer

In phase 1,the initial gas exhaled is from the conducting airways,which contain low levels of carbon dioxide (CO₂)from inspired air.During phase 2,alveolar gas containing CO₂ mixes with gas from the anatomical airways and the CO₂ concentration rises.In phase 3,the curve plateaus as alveolar gas is exhaled.In phase 4,the concentration falls to zero.

During Which Phase of a Capnograph Does Alveolar Gas Containing