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Capnography
Normal Capnogram:
A-B: A near zero baseline - Exhalation of CO2 free gas contained in dead space.
B-C: Rapid, sharp rise - Exhalation of mixed dead space and alveolar gas.
C-D: Alveolar plateau - Exhalation of mostly alveolar gas.
D: End tidal value - Peak CO2 concentration - normally at the end of exhalation.
D-E: Rapid, sharp down stroke - Inhalation.
**Document End-Tidal CO2 reading on ePCR**
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