Multiple Choice
Why is it necessary to keep the patient's PaO2 greater than 60 mm Hg?
A) A level of 60 mm Hg marks the beginning of the steep part of O2Hb dissociation curve.
B) Below the 60 mm Hg level, tissue hypoxia is ensured.
C) Oxygen deprivation will cause severe cerebral vasoconstriction below 60 mm Hg.
D) The PaCO2 will start to rise precipitously if the PaO2 falls further.
Correct Answer:

Verified
Correct Answer:
Verified
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