Template:Wells DVT Calculator
Interactive Wells' Criteria for DVT calculator. Requires the calculator gadget.
Usage: {{Wells DVT Calculator}}
| Criteria | No | Yes | Points |
|---|---|---|---|
| Active cancer (treatment within 6 months or palliative) | 1 | +1 | |
| Bedridden recently >3 days or major surgery within 12 weeks | 1 | +1 | |
| Calf swelling >3 cm compared to other leg (measured 10 cm below tibial tuberosity) | 1 | +1 | |
| Collateral superficial veins (non-varicose) | 1 | +1 | |
| Entire leg swollen | 1 | +1 | |
| Localized tenderness along deep venous system | 1 | +1 | |
| Pitting edema confined to symptomatic leg | 1 | +1 | |
| Paralysis, paresis, or recent cast immobilization of lower extremities | 1 | +1 | |
| Previously documented DVT | 1 | +1 | |
| Alternative diagnosis at least as likely as DVT | 1 | −2 | |
| Wells' Score | points | ||
| Interpretation (Traditional) | |
|---|---|
| ≤0 | Low Risk — 5% prevalence of DVT. Consider D-dimer to rule out. |
| 1–2 | Moderate Risk — 17% prevalence of DVT. Consider D-dimer or ultrasound. |
| ≥3 | High Risk — 53% prevalence of DVT. Ultrasound recommended. |
| Interpretation (Dichotomized) | |
| ≤1 | DVT Unlikely — D-dimer to rule out. |
| ≥2 | DVT Likely — Ultrasound recommended. |