WELLS SCORE IN CLINICAL ASSESSMENT OF DVT | ||
Predisposing factors | ||
Active cancer (undergoing active or palliative treatment or discovered less than 6 months ago) | 1 point | |
Paresis, paralysis or recent cast immobilization of the lower limbs | 1 point | |
Recent bed rest > 3 days or major surgery < 4 weeks | 1 point | |
Physical examination | ||
Pain at palpation of the course of the deep veins | 1 point | |
Swelling ( = generalized edema) of an entire limb | 1 point | |
Unilateral swelling of a calf (>3 cm difference between the 2 sides) NB.: measured 10 cm below the anterior tibial tuberosity | 1 point | |
pitting edema | 1 point | |
(non-varicose) collateral venous circulation | 1 point | |
Alternative diagnosis at least as likely as DVT | −2 points | |
LOW clinical probability (3%) score: 0 points Clinical probability INTERMEDIATE (17%) score: 1 - 2 points HIGH clinical probability (75%) score > 3 points | ||