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Wells Clinical Prediction Rule for Pulmonary Embolism (PE)

Clinical feature /   Points

Clinical symptoms of DVT. (Points: 3 )
Other diagnosis less likely than PE. (Points: 3 )
Heart rate greater than 100 beats per minute. (Points: 1.5 )
Immobilization or surgery within past 4 weeks.  (Points: 1.5 )
Previous DVT or PE.  (Points: 1.5 )
Hemoptysis. (Points: 1 )
Malignancy. (Points: 1 )


[1 ] Ramzi DW, Leeper KV. DVT and Pulmonary Embolism: Part I. Diagnosis. Am Fam Physician. 2004 Jun 15;69(12):2829-2836

[2 ] Ramzi DW, Leeper KV. DVT and pulmonary embolism: Part II. Treatment and prevention. Am Fam Physician. 2004;69:2841-8

[3 ] Wells PS, Anderson DR, Rodger M, Ginsberg JS, Kearon C, Gent M, et al. Derivation of a simple clinical model to categorize patients’ probability of pulmonary embolism: increasing the model utility with the SimpliREDd-dimer. Thromb Haemost 2000;83:418.


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