Medicine A patient presents with respiratory distress and shows pH = 7.2, PCO2 = 50 mmHg, PO2 = 85 mmHg and HCO3 = 20 mEq/L. The cause is A Metabolic acidosis B Metabolic alkalosis C Respiratory acidosis with compensatory Metabolic alkalosis D Respiratory acidosis with decompensatory Metabolic acidosis 💡 Explanation A patient presents with respiratory distress and shows pH = 7.2, PCO2 = 50 mmHg, PO2 = 85 mmHg and HCO3 = 20 mEq/L. The cause is ✓ Correct Answer: D. Respiratory acidosis with decompensatory Metabolic acidosis