Wells DVT Score Calculator
Calculate the Wells Score for Deep Vein Thrombosis (DVT) to estimate pretest probability and guide diagnostic workup.
Important Health Disclaimer
This calculator provides general health information based on standard medical formulas and WHO guidelines. Results are for informational and educational purposes only and should not be considered as professional medical advice, diagnosis, or treatment recommendations.
For health concerns, medical conditions, fitness plans, or dietary decisions, please consult with qualified healthcare professionals, licensed physicians, registered dietitians, or certified fitness trainers who can evaluate your individual health status and medical history.
Individual health needs vary significantly. These calculations are general estimates and may not be appropriate for everyone, especially those with existing medical conditions, pregnant women, children, or elderly individuals.
Not a substitute for professional medical advice
Wells Criteria for DVT
Wells Score for DVT
0
Low Probability
Pretest probability: 5% (4-8%)
Two-Level Score
DVT Unlikely
Probability: 6%
Score Range
-2 to +9
Current: 0
Interpretation
Low pretest probability. D-dimer can safely exclude DVT if negative.
Recommended Next Steps
- • D-dimer testing recommended
- • If D-dimer negative: DVT excluded (negative predictive value >99%)
- • If D-dimer positive: Proceed to ultrasound
- • No imaging needed if D-dimer negative
Diagnostic Algorithm
Low (≤0): D-dimer → if negative, DVT excluded
Moderate (1-2): D-dimer → ultrasound if positive
High (≥3): Ultrasound directly
Alternative Diagnoses to Consider
Disclaimer: The Wells Score is a clinical decision aid and should be used in conjunction with clinical judgment. It has not been validated in pregnancy, suspected upper extremity DVT, or patients already on anticoagulation. Always consult appropriate clinical guidelines.
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