Use our Wells Score DVT Calculator to quickly assess the probability of Deep Vein Thrombosis. This clinical prediction rule aids healthcare professionals in risk stratification, guiding further diagnostic steps for DVT prevention and management.
Formula:
Wells Score for DVT Formula:
The Wells Score for DVT is not a single mathematical formula but a sum of points assigned to specific clinical criteria. Each criterion, if present, adds a certain number of points to the total score. A higher total score indicates a higher probability of Deep Vein Thrombosis.
- Active cancer (treatment ongoing, within 6 months, or palliative): +1 point
- Paralysis, paresis, or recent plaster immobilization of lower extremity: +1 point
- Recently bedridden (>3 days) or major surgery (<4 weeks): +1 point
- Localized tenderness along the distribution of the deep venous system: +1 point
- Entire leg swollen: +1 point
- Calf swelling >3 cm larger than asymptomatic leg (measured 10 cm below tibial tuberosity): +1 point
- Pitting edema confined to the symptomatic leg: +1 point
- Collateral superficial veins (non-varicose): +1 point
- Previous documented DVT: +1 point
- Alternative diagnosis at least as likely as DVT: -2 points
Interpretation (Two-Level Probability):
Score < 2: DVT Unlikely
Score ≥ 2: DVT Likely