Thelansis

 Pulmonary embolism (PE) is a systemic arterial systolic pressure below 90 mmHg that does not respond to pressor agents. PE is often called "the great masquerader" due to its ability to mimic the signs and symptoms of other diseases. The majority of clinically significant PEs originate from venous thromboembolisms (VTEs) that develop in the lower extremities or pelvic veins. In rarer cases, upper extremity thromboembolic events can result in PE. The development of VTE is associated with various conditions. Virchow's triad, consisting of hypercoagulability, venous stasis, and vessel wall injury, provides a model for understanding many risk factors. These factors can be either inherited or acquired. Major risk factors for thromboembolic events include recent immobilization, myocardial infarction (MI), cerebrovascular accident (CVA), surgery, and trauma. Failure to diagnose PE is a severe management error, as untreated patients have a mortality rate of 30%, whereas, with eff...