Phase 1 of a single-breath CO₂ curve represents which of the following?
A) Anatomic dead space
B) Physiologic dead space
C) Transition between airway and alveolar exhaled gas
D) Anatomic shunt

Name: Phase 1 of a single-breath CO₂ curve represents which of the following? A) Anatomic dead space B) Physiologic dead space C) Transition between airway and alveolar exhaled gas D) Anatomic shunt
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Question

Quizplus · Accepted Answer

Anatomic dead space has no CO₂; the mixed expired CO₂ (FECO₂)= 0 during that phase.

Phase 1 of a Single-Breath CO₂ Curve Represents Which of the Following