Wells Score for DVT Calculator

Calculate pretest probability of deep vein thrombosis (DVT) using the Wells criteria to guide diagnostic decisions in line with UK clinical pathways.

Important Clinical Disclaimer: The Wells DVT Calculator is intended for use by qualified healthcare professionals only. It is for educational and informational purposes and should not replace clinical judgement. Always interpret results alongside the full clinical picture and follow your local guidelines and protocols.

DVT Wells Score

About DVT Wells Score

The DVT Wells score is a clinical prediction rule used to estimate the pre-test probability of deep vein thrombosis (DVT) before more definitive testing. It helps to determine the need for further diagnostic tests.

Interpretation

The DVT Wells score helps stratify patients into risk categories to guide diagnostic testing:

  • Score ≤ 1: Low probability (≈3% risk of DVT)
  • Score 2: Moderate probability (≈17% risk of DVT)
  • Score ≥ 3: High probability (≈75% risk of DVT)
Disclaimer

This calculator is provided for educational and informational purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment.

  • Always seek the advice of a qualified healthcare provider with any questions regarding a medical condition.
  • Never disregard professional medical advice or delay seeking it because of information from this tool.
  • Clinical decision-making should always incorporate the full clinical context, patient preferences, and local protocols.
  • The creators of this tool accept no liability for decisions made based on its output.

If you are a patient: please discuss any results with your healthcare provider. This tool is designed for use by medical professionals and may not be appropriate for self-assessment.