what is pulmonary embolism?
Pulmonary embolism is usually caused by an embolism from a thrombosis in the larger veins above the knee. A deep venous thrombosis can be found in at least 80% of cases of pulmonary emboli. Risk Factors For Pulmonary Embolism Venous Stasis. Prolonged immobilization, stroke, myocardial infarction,... Sign in to see full entry.