A patient, who has had an ORIF of the femur, suddenly develo…

A patient, who has had an ORIF of the femur, suddenly develops shortness of breath, petechiae, and his pulse oximetry level decreases from 96% to 89% saturation. The vital signs include: BP: 130/80; Pulse: 110; Respiratory Rate: 32; Temp: 37. The nurse should be concerned that the symptoms may indicate the development of which of the following?