The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 74-year-old man undergoes an open cholecystectomy. Surgery is performed under general anesthesia for which the patient is intubated with an endotracheal tube. Directly following the procedure, his temperature is 37°C (98.6°F), pulse is 80/min, and blood pressure is 110/80 mm Hg. He is extubated as soon as he showed signs of alertness. Five minutes later, he becomes unresponsive. He has type 2 diabetes mellitus, coronary artery disease, and hypertension. He underwent stenting of the right coronary artery 10 years ago. He smoked one pack of cigarettes daily for 40 years but quit 2 weeks ago for surgery. He drinks one to two beers daily. His current medications include metformin, enalapril, aspirin, atorvastatin, and a multivitamin. His temperature is 37°C (98.6°F), pulse is 102/min, respirations are 20/min, and blood pressure is 130/80 mm Hg. Pulse oximetry shows an oxygen saturation of 73%. He is put on a non-rebreather mask with an FiO2 of 100%. Three minutes later, he is still unresponsive. His arterial blood gas analysis shows: pH 7.32 PCO2 33 mm Hg PO2 73 mm Hg HCO3 22 mEq/L O2 saturation 73% Which of the following is the best next step in the management of this patient?"   (A) Perform tracheostomy   (B) Continue using the non-rebreather mask   (C) Reintubate   (D) Start BiPAP
['(C) Reintubate <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Perform tracheostomy \n (B) Continue using the non-rebreather mask \n (C) Reintubate \n (D) Start BiPAP <> possible answers', '  A 74-year-old man undergoes an open cholecystectomy. Surgery is performed under general anesthesia for which the patient is intubated with an endotracheal tube. Directly following the procedure, his temperature is 37°C (98.6°F), pulse is 80/min, and blood pressure is 110/80 mm Hg. He is extubated as soon as he showed signs of alertness. Five minutes later, he becomes unresponsive. He has type 2 diabetes mellitus, coronary artery disease, and hypertension. He underwent stenting of the right coronary artery 10 years ago. He smoked one pack of cigarettes daily for 40 years but quit 2 weeks ago for surgery. He drinks one to two beers daily. His current medications include metformin, enalapril, aspirin, atorvastatin, and a multivitamin. His temperature is 37°C (98.6°F), pulse is 102/min, respirations are 20/min, and blood pressure is 130/80 mm Hg. Pulse oximetry shows an oxygen saturation of 73%. He is put on a non-rebreather mask with an FiO2 of 100%. Three minutes later, he is still unresponsive. His arterial blood gas analysis shows:\npH 7.32\nPCO2 33 mm Hg\nPO2 73 mm Hg\nHCO3 22 mEq/L\nO2 saturation 73%\nWhich of the following is the best next step in the management of this patient?" <> context@']