However, the intermediate-risk categories require assessment of their entire clinical picture including Symptoms and signs Severity of RV dysfunction by echocardiography Degree of troponin elevation Amount of oxygen and vasopressor required Clot burden and location Many hospitals in the US and other countries now use a multidisciplinary group of clinicians (pulmonary embolus response team) to rapidly evaluate and risk-stratify patients with pulmonary embolism and make the complex treatment decisions needed.