Interpret the following ABG: pH 7.44, PaCo2 48mmHg, HCO3 30 Meq/L

Rationale: A. Normal ABG would have pH between 7.35–7.45, PaCO₂ between 35–45 mmHg, and HCO₃⁻ between 22–26 mEq/L. This ABG is not fully normal. B. Metabolic acidosis is characterized by low pH and low HCO₃⁻, which is not the case here. C. Metabolic alkalosis shows elevated HCO₃⁻ (30 mEq/L) and a near-normal but slightly alkalotic pH (7.44). The elevated PaCO₂ (48 mmHg) suggests partial respiratory compensation. D. Respiratory acidosis would have a low pH and high PaCO₂, which doesn't match this ABG.