The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A diabetic and hypeensive patient taking several drugs presented with septicemia. Serum creatinine levels are 5.7 mg/dL. Which of the following drug should be stopped?   (A) Insulin   (B) Metoprolol   (C) Linagliptin   (D) Metformin
['(D) Metformin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Insulin \n (B) Metoprolol \n (C) Linagliptin \n (D) Metformin <> possible answers', '  A diabetic and hypeensive patient taking several drugs presented with septicemia. Serum creatinine levels are 5.7 mg/dL. Which of the following drug should be stopped? <> context@']