input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** On laboratory investigations in a patient. pH = 7.3, pCO2 = 35 mm Hg. What is the likely acid base imbalance?   (A) Respiratory acidosis   (B) Metabolic acidosis   (C) Metabolic alkalosis   (D) Respiratory alkalosis
output: ['(B) Metabolic acidosis <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Respiratory acidosis  (B) Metabolic acidosis  (C) Metabolic alkalosis  (D) Respiratory alkalosis <> possible answers', '  On laboratory investigations in a patient. pH = 7.3, pCO2 = 35 mm Hg. What is the likely acid base imbalance? <> context']