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Equations

Scores

Well's Criteria for Pulmonary Embolism / PE

Clinical Signs and Symptoms of DVT? Yes +3
PE Is #1 Diagnosis, or Equally Likely Yes +3
Heart Rate > 100? Yes +1.5
Immobilization at least 3 days, or Surgery in the Previous 4 weeks Yes +1.5
Previous, objectively diagnosed PE or DVT? Yes +1.5
Hemoptysis? Yes +1
Malignancy w/ Rx within 6 mo, or palliative? Yes +1
Score

Derivation of a simple clinical model to categorize patients probability of pulmonary embolism: increasing the models utility with the SimpliRED D-dimer. Thromb Haemost. 2000 Mar;83(3):416-20.