Decision Rule - Well's Score for Deep Vein Thrombosis (DVT)

Well’s Criteria for Deep Vein Thrombosis (DVT):

Active malignancy (treatment or palliation within 6 months)
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Bedridden recently >3 days or major surgery within 4 weeks
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Calf swelling >3 cm compared to the other leg (measured 10 cm below the tibial tuberosity)
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Collateral (nonvaricose) superficial veins present
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Entire leg swollen
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Localized tenderness along the deep venous system
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Pitting edema confined to symptomatic leg
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Paralysis, paresis, or recent plaster immobilization of the lower extremity
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Previously documented DVT
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . +1 points
    -SCORE = [##] points

Alternative diagnosis to DVT as likely or more likely
    -No . . . . . . . . . . . . . . 0 points
    -Yes . . . . . . . . . . . . . . -2 points
    -SCORE = [##] points

TOTAL SCORE = [##] points
Patient is determined to be low risk (0 points or lower) with an incidence of DVT of 5%.
Patient is determined to be moderate risk (1-2 points) with an incidence of DVT of 17%.
Patient is determined to be high risk (≥3 points) with an incidence of DVT of 17-53%.