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ABCP Board review 2023//2024 The major cation found in extracellular fluid is? a) K+ b) Ca++ c) Mg++ d) Na+ - ANSWER d) Na+ Oxygen delivery will be decreased when a low venous oxygen tension and high venous oxyhemoglobin saturation are present due to: a) increase in P50 b) decrease in P50 c) metabolic alkalosis d) metabolic acidosis - ANSWER c) metabolic alkalosis At a given PO2, increasing PCO2 results in: a) more O2 bound to the hemoglobin b) less O2 bound to hemoglobin c) no effec...