COMEDK 2007 MCQ Answer 106
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Venous air embolism may occur during any operative procedure in which the operative site is above the level of the heart and non-collapsible veins are exposed to atmospheric pressure, or when air or any other gas is introduced under pressure into a body cavity.
Determination of end-tidal CO2 (ETCO2) concentration to confirm adequate ventilation is useful during all anesthetic procedures, but particularly so for general anesthesia. A rapid fall of ETCO2 is a sensitive indicator of air embolism, a major complication of sitting craniotomies.
Venous air embolism may occur during any operative procedure in which the operative site is above the level of the heart and non-collapsible veins are exposed to atmospheric pressure, or when air or any other gas is introduced under pressure into a body cavity.
Determination of end-tidal CO2 (ETCO2) concentration to confirm adequate ventilation is useful during all anesthetic procedures, but particularly so for general anesthesia. A rapid fall of ETCO2 is a sensitive indicator of air embolism, a major complication of sitting craniotomies.
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