Although the usefulness of brain natriuretic peptide (BNP) concentrations to diagnose  pulmonary embolism (PE) is limited, elevated BNP and pro-BNP levels are associated with right ventricular dysfunction and increased mortality, and are therefore useful prognostic markers. The evaluation of troponin concentration also serves as a useful prognostic marker to identify myocardial necrosis and mortality associated with acute PE.
Pulmonary embolism biomarkers
Pulmonary embolism compression ultrasonography
Cyanosis CT
Pulmonary embolism echocardiography
Pulmonary embolism MRI
Chest pain MRI
Lipoid pneumonia electrocardiogram
Acute respiratory distress syndrome echocardiography