Name the pulmonary imbalance using the following Arterial blood Gas (ABG) values: pH 7.41, PaCO2 46, HCO3- 30

Choice A reason: Metabolic acidosis has low pH and HCO3-. Normal pH (7.41) and high HCO3- (30) suggest alkalosis, not acidosis, so this is incorrect for the ABG values. Choice B reason: Respiratory acidosis has high PaCO2 and low pH. Normal pH and high HCO3- indicate metabolic alkalosis, not respiratory acidosis, so this is incorrect. Choice C reason: Respiratory alkalosis has low PaCO2 and high pH. High PaCO2 (46) and HCO3- rule this out, pointing to metabolic alkalosis, so this is incorrect. Choice D reason: Normal pH (7.41), high PaCO2 (46), and high HCO3- (30) indicate metabolic alkalosis fully compensated by respiratory CO2 retention. This is correct.