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CareCalculus GEO-Intelligence Node
Active Regional Guidelines Standard
International medical criteria & SI Metric protocols standard.
Region:Middle East & North Africa (MENA)
Units:Metric (SI)
TOP CLINICAL KEYWORD INDEX
Wells' Criteria for DVT
Determine the pretest probability of deep vein thrombosis
Active cancer (treatment within 6 months or palliative)+1
Paralysis, paresis, or recent cast of lower extremities+1
Recently bedridden > 3 days, or major surgery within 12 weeks+1
Localized tenderness along the deep venous system+1
Entire leg swollen+1
Calf swelling > 3 cm compared to asymptomatic leg+1
Pitting edema confined to symptomatic leg+1
Collateral nonvaricose superficial veins+1
Previously documented DVT+1
Alternative diagnosis at least as likely as DVT-2
Calculated Score
0Points
DVT Unlikely
Clinical Next Steps
Score ≥ 2 indicates DVT is likely; consider ultrasound. Score < 2 generally indicates DVT is unlikely; a D-dimer may be appropriate.
Mathematical Metric
Sum of points (-2 to 9)
Evidence & Lit
References: Wells PS, et al. Value of assessment of pretest probability of deep-vein thrombosis.