Wells Clinical Prediction Rule

For DVT/PE

DVT   PE  
Clinical Feature Pts Clinical Feature Pts
Active Cancer (treatment within 6 months, or palliation) 1 Clinical Sx of DVT 3
Paralysis, paresis, or immobilization of LE 1 Other diagnosis less likely than PE 3
Bedridden for more than 3 days because of surgery (within 4 weeks) 1 HR > 100 1.5
Localized tenderness along distribution of deep veins 1 Immobilization or surgery within past 4 weeks 1.5
Entire Leg Swelling 1 Previous DVT/PE 1.5
Unilateral pitting edema 1 Hemoptysis 1.0
Collateral superficial veins 1 Malignancy 1.0
Alternative diagnosis as likely as or more likely than DVT -2  

 > 6: high risk (78.4%)
2-6: moderate risk (27.8%)
< 2: low risk (3.4%)

 

> 3: high risk (75%)
1-2: moderate risk (17%)
<1: low risk (3%)