general-medicine emergency-medicine vascular
Wells DVT Score
Pre-test probability score for deep vein thrombosis (DVT). Guides D-dimer and Doppler ultrasound ordering.
Used in: Venous Thromboembolism (DVT & PE)
Score interpretation
DVT Unlikely (Wells ≤ 1)
→ D-dimer; if positive, proximal leg vein ultrasound within 4 hours (or interim anticoagulation and scan within 24 hours); if negative, DVT unlikely (NICE NG158)
DVT Likely (Wells ≥ 2)
→ Proximal leg vein ultrasound within 4 hours (or D-dimer, interim anticoagulation and scan within 24 hours); if the scan is negative, D-dimer — if positive, repeat the scan 6–8 days later (NICE NG158)
Interpretation bands for the Wells DVT. Apply clinical judgement and local guidance.
References
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
- HERDOO2 Rule for Discontinuing Anticoagulation in Unprovoked VTE · Venous Thromboembolism
- RIETE Score for Bleeding Risk in VTE · Venous Thromboembolism
- Wells Criteria for PE · Venous Thromboembolism
- Wells Criteria for DVT · Venous Thromboembolism
- PERC Rule for PE · Venous Thromboembolism
- Revised Geneva Score for PE · Venous Thromboembolism
Drugs
Pathways
- Falls Assessment in Older Adults · NICE CG161 2013
- Anaemia Investigation · BSH / NICE
- Lower Respiratory Tract Infection (Primary Care) · NICE NG138 / NICE antimicrobial guidance
- Hypertension Management · NICE NG136 2019
- Peripheral Arterial Disease · NICE NG19 2012 / ESVS 2017
- Carotid Artery Disease · NICE CG68 / ESVS 2018
Decision support only — verify against a current formulary, NICE, or your local guideline before clinical use.
