Variables | Points | |
Risk factors | Age >65 years | 1 |
Previous deep venous thrombosis or pulmonary embolism | 3 | |
Surgery under general anesthesia or fracture of the lower limbs within one month | 2 | |
Active malignancy (solid or hematologic; currently active or cured within the last year) | 2 | |
Symptoms | Unilateral lower-limb pain | 3 |
Hemoptysis | 2 | |
Signs | Heart rate 75 to 94 beats per minute | 3 |
≥95 beats per minute | 5 | |
Pain on lower limb deep venous palpation and unilateral edema | 4 | |
Total points | ||
Pre-test probability assessment | Low | 0 to 3 |
Intermediate | 4 to 10 | |
High | ≥11 |
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