Units: US SI

Well’s Criteria for DVT

Active cancer? Yes +1
Bedridden recently >3 days or major surgery within four weeks? Yes +1
Calf swelling >3cm compared to the other leg? Yes +1
Collateral (nonvaricose) superficial veins present? Yes +1
Entire leg swollen? Yes +1
Localized tenderness along the deep venous system? Yes +1
Pitting edema, greater in the symptomatic leg? Yes +1
Paralysis, paresis, or recent plaster immobilization of the lower extremity Yes +1
Alternative diagnosis to DVT as likely or more likely? Yes -2
Score Points

Equations

Scores