Question

what invasive cpr performance measure reflects changes in cardiac output due to chest compressions, if oxygen consumption, arterial oxygen saturation, and hemoglobin remain constant? choose the correct answer arterial relaxation pressure end - tidal carbon dioxide measure oxygen saturation by pulse oximetry central venous oxygen saturation

Explanation:

End - tidal carbon dioxide (EtCO2) is an invasive CPR performance measure that can reflect changes in cardiac output during chest compressions. When cardiac output is stable due to effective compressions, EtCO2 tends to remain relatively constant. Arterial relaxation pressure is not the main measure for this purpose. Oxygen saturation by pulse oximetry and central venous oxygen saturation are not specific invasive measures for reflecting changes in cardiac output during CPR in the same way as EtCO2.

Answer:

End - tidal carbon dioxide measure