Emergency Medicine · Vascular Medicine · Internal Medicine
Wells Criteria for DVT calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
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0
Low probability
Band: Low probability
Interpretation. Low probability
Suggested management. Consider D-dimer; if negative, DVT is unlikely.
Wells Criteria for DVT: 0 — Low probability. Interpretation: Low probability What to do: Consider D-dimer; if negative, DVT is unlikely. Inputs: Active cancer: false; Paralysis, paresis, or recent plaster immobilization: false; Bedridden >3 days or major surgery within 4 weeks: false; Localized tenderness along the deep venous system: false; Entire leg swelling: false; Calf swelling >3 cm vs other leg: false; Pitting edema confined to the symptomatic leg: false; Collateral superficial veins (non-varicose): false; Alternative diagnosis at least as likely as DVT: false Source: Wells PS et al. Value of assessment of pretest probability of deep-vein thrombosis in clinical management. Lancet (1997)
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Clinical inputs
- Active cancer
- Paralysis, paresis, or recent plaster immobilization
- Bedridden >3 days or major surgery within 4 weeks
- Localized tenderness along the deep venous system
- Entire leg swelling
- Calf swelling >3 cm vs other leg
- Pitting edema confined to the symptomatic leg
- Collateral superficial veins (non-varicose)
- Alternative diagnosis at least as likely as DVT
Primary source
Wells PS et al. Value of assessment of pretest probability of deep-vein thrombosis in clinical management. Lancet (1997)
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