Complete the following sentence by using the lists of options.

Pulmonary embolism due to recent surgery. The clinical picture (sudden dyspnea, S3/S4, bilateral crackles, tachypnea, tachycardia, hypoxia on the day of major orthopedic surgery) fits PE. Surgery triggers all three components of Virchow's triad — venous stasis, hypercoagulability, and vascular injury — making it the primary risk factor. The client does not smoke, is active, and elevated cholesterol is well-controlled.