Capnography in the Emergency Department: A Review of Uses, Waveforms, and Limitations. End-tidal carbon dioxide and outcome of out-of-hospital cardiac arrest. Capnography during cardiopulmonary resuscitation: Current evidence and future directions. Comparison of three different methods to confirm tracheal tube placement in emergency intubation. Does end tidal CO2 monitoring during emergency department procedural sedation and analgesia with propofol decrease the incidence of hypoxic events? A randomized, controlled trial. An early indicator of reperfusion from ROSC is sudden rise in EtCO 2 and thereby may help to decrease deleterious pauses in chest compressions for pulse checksĭeitch K, Miner J, Chudnofsky CR, Dominici P, Latta D.Prognostic factor of ROSC if Can provide a quantitative measure of chest compression effectiveness.The gold standard for confirmation of tracheal placement ( Grmec 2002).Pattern also seen in leaks in breathing system (endotracheal tube leaks).Upsloping of alveolar plateau due to alveolar leak of CO 2.Metabolic acidosis → decreased HCO 3 → compensatory hyperventilation → increased minute ventilation and decreased ETCO 2.May also detect other adverse effects, such as bronchospasm, laryngospasm, or upper airway obstruction.Median time to difference in detection = 60 seconds. ![]() Earlier recognition of respiratory depression when compared to pulse-oximetry ( Deitch 2010).Unlike pulse-oximetry, not prone to motion artifact. ![]()
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