The area under the curve of a single-breath carbon dioxide (SBCO₂)curve represents which of the following?
A) Tidal volume
B) Alveolar dead space
C) Physiologic dead space
D) Effective alveolar ventilation

Question

Quizplus · Accepted Answer

The area under the single-breath carbon dioxide (SBCO₂)curve represents alveolar volume.This is known as phase 3 on the SBCO₂ curve.Phase 1 is the anatomical dead space volume.Phase 2 is a transitional phase between anatomical dead space and alveolar volume.

The Area Under the Curve of a Single-Breath Carbon Dioxide