Capnography Explained

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Measuring exhaled carbon dioxide (End Tidal CO2, ETCO2) is an important ICU technology that can used to confirm ETT placement, to ensure safer procedural sedation, to guide ACLS/resuscitation, and to monitor cardiac and pulmonary physiology in realtime. This ICU OnePager describes the physiology, equipment, waveforms you will see with ETCO2 monitoring.

Author(s): Nick Mark, MD

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Attribution:   Title: “Capnography Explained”   Creator: “Nick Mark MD“  Source:OnePager ICU“   License: “CC BY-SA 3.0

Citation Example:   OnePagers: Mark NM, “Capnography Explained” Published 2020-11-18, OnePagerICU, URL: (accessed Date)