Name the following arterial blood gas (ABG) values: pH 7.47, PaCO2 32, HCO3- 23

Choice A reason: Respiratory acidosis has low pH and high PaCO2. High pH (7.47) and low PaCO2 (32) indicate alkalosis, not acidosis, so this incorrect. Choice B reason: Metabolic acidosis has low pH and HCO3-. High pH and normal HCO3- (23) rule this out, pointing to respiratory alkalosis, so this is incorrect. Choice C reason: Metabolic alkalosis has high pH and high HCO3-.. Normal HCO3- and low PaCO2 indicate respiratory alkalosis, so this is incorrect. Choice D reason: High pH (7.47) and low PaCO2 (32) with normal CO2 HCO3- confirm respiratory alkalosis due to hyperventilation. This is matches, so it’s correct.