TABLE 1.

Wells' CPR for Pulmonary Embolism

Clinical Characteristics of PE	Score
Clinical signs and symptoms of DVT (minimum of leg swelling and pain with palpation of the deep veins)	3
PE as or more likely than an alternative diagnosis	3
Heart rate greater than 100	1.5
Immobilization in the past 4 days or surgery in the previous 4 weeks	1.5
Previous DVT/PE	1.5
Hemoptysis	1
Malignancy	1

PE, pulmonary embolism; DVT, deep vein thrombosis.