A patient has an ABG of pH 7.19, PaCO₂ of 47 mmHg, and bicarbonate of 23 mEq/L. What is the correct interpretation of the ABG?

Choice A reason: Metabolic alkalosis would present with elevated pH and bicarbonate, which is not the case here. Choice B reason: Respiratory alkalosis is characterized by elevated pH and decreased PaCO₂, opposite of this scenario. Choice C reason: The low pH and elevated PaCO₂ indicate respiratory acidosis, suggesting hypoventilation or impaired gas exchange. Choice D reason: Metabolic acidosis would show low pH and low bicarbonate, which is not present in this ABG.