Parameter |
Score (original) |
Score (simplified) | |
Predisposing factors | |||
Age >65 years |
1 |
1 | |
Previous deep vein thrombosis or pulmonary embolism |
3 |
1 | |
Surgery or fracture in the past month |
2 |
1 | |
Active malignant condition |
2 |
1 | |
Symptoms | |||
Unilateral lower limb pain |
3 |
1 | |
Hemoptysis |
2 |
1 | |
Signs | |||
Heart rate 75-94 beats/min |
3 |
1 | |
Heart rate ≥95 beats/min |
5 |
2 | |
Pain on deep venous palpation of the lower limb and unilateral edema |
4 |
1 | |
Interpretation | |||
Clinical probability (3 levels; original score) Low clinical probability: Total score 0-3 Intermediate clinical probability: Total score 4-10 High clinical probability: Total score ≥11 Clinical probability (3 levels; simplified score) Low clinical probability: Total score 0-1 points Intermediate clinical probability: Total score 2-4 points High clinical probability: Total score ≥5 points Clinical probability (2 levels; original score) Pulmonary embolism unlikely: Total score 0-5 points Pulmonary embolism likely: Total score ≥6 points Clinical probability (2 levels; simplified score) Pulmonary embolism unlikely: Total score 0-2 points Pulmonary embolism likely: Total score ≥3 points | |||
Adapted from Arch Intern Med. 2008;168(19):2131-6 and Ann Intern Med. 2006;144(3):165-71. |