The portion of delivered oxygen actually consumed and an index of the efficiency of circulation is the definition for the:
A) oxygenation index (OI) .
B) oxygen extraction ratio (C[a - v]O₂/CaO₂) .
C) arterial-mixed venous oxygen content difference (C[a - v]O₂) .
D) arterial-mixed venous oxygen saturation difference (S[a - v]O₂) .
Correct Answer:
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