Wells criteria for deep vein thrombosis and pulmonary embolism
| Criteria for deep vein thrombosis | Points |
|---|---|
| Active cancer | +1 |
| Paralysis, paresis, or recent plaster immobilization | +1 |
| Recently bedridden (> 3 days) or major surgery in past 4 weeks | +1 |
| Localized tenderness along deep vein system | +1 |
| Entire limb swollen | +1 |
| Calf swelling by more than 3 cm compared with asymptomatic leg | +1 |
| Previously documented deep vein thrombosis | +1 |
| Pitting edema, greater in the symptomatic leg | +1 |
| Dilated collateral superficial veins (nonvaricose) | +1 |
| Alternative diagnosis likely or more possible than deep vein thrombosis | -2 |
| Previously documented deep vein thrombosis | +1 |
| A score of 2 or more suggests a higher risk of deep vein thrombosis | |
| Criteria for pulmonary embolism | Points |
| Clinical signs and symptoms of deep vein thrombosis | +3 |
| Alternative diagnosis less probable than pulmonary embolism | +3 |
| Heart rate > 100 beats per minute | +1.5 |
| Immobilization for at least 3 days or major surgery in past 4 weeks | +1.5 |
| Previous deep vein thrombosis or pulmonary embolism | +1.5 |
| Hemoptysis | +1 |
| Malignancy (on treatment, treated in the last 6 months, or palliative) | +1 |
| A score of 5 or more suggests a high likelihood of pulmonary embolism | |
| Online calculators: www.mdcalc.com/wells-criteria-for-pulmonary-embolism-pe/ www.mdcalc.com/wells-criteria-for-dvt/ |
Based on information in references 7–14.