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Wells Score (DVT and PE)

Calculate the Wells criteria for Deep Vein Thrombosis (DVT) and Pulmonary Embolism (PE) to assess the pre-test probability of a blood clot.

Enter Values

Condition

Active Cancer

Bedridden > 3 days / Surgery < 4 weeks

Entire leg swollen

Calf swelling > 3cm

Result

Enter values above and click Calculate to see your result.

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Formula

Weighted criteria based on clinical findings.

Combines risk factors (cancer, immobilization) and clinical signs (leg swelling) to guide the need for ultrasound or D-dimer testing.

Worked Example

Active cancer (+1), Swollen entire leg (+1), Previous DVT (+1) -> Wells Score 3 (High Probability).

Frequently Asked Questions

Is the score different for DVT and PE?

Yes. While they share some risk factors, the scoring weights and clinical criteria differ between the two conditions.

What does a low score mean?

If the score is low and a D-dimer test is negative, the diagnosis of DVT or PE can be safely ruled out without imaging.

What happens for a high score?

Diagnostic imaging (like ultrasound for DVT or CTPA for PE) is usually required regardless of the D-dimer result.

Medical Disclaimer

This calculator is provided for informational and educational purposes only. It is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making any decisions based on these results. Do not disregard or delay seeking medical advice because of information obtained from this tool.

AI Assistant

Ask about this calculator

I can help you understand the wells score (dvt and pe) formula, interpret your results, and answer follow-up questions.

Try asking

Our AI assistant provides general estimates and advice only. Please consult a qualified healthcare professional before making any health-related decisions.

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