【单选题】A 23-year-old man undergoes surgery for fractures of the pelvis and left femur resulting from a high-speed motor vehicle accident. The following day he develops dyspnea, speech difficulties, and a pet...
【单选题】A 23-year-old undergoes surgery for fractures of the pelvis and left femur resulting from a high-speed motor vehicle accident. The following day he develops dyspnea, speech difficulties, and a petechi...