Wells' Criteria for Pulmonary Embolism (PE) Risk

Calculate the probability of Pulmonary Embolism (PE) using the Wells' Criteria. Quickly assess patient risk based on clinical criteria.

Wells' Criteria for PE

Medical Disclaimer

This tool is for educational and screening purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

Clinical signs/symptoms of DVT (+3)

PE is #1 diagnosis OR equally likely (+3)

Heart Rate > 100 bpm (+1.5)

Immobilization (≥ 3 days) or Surgery within 4 weeks (+1.5)

Prior PE or DVT (+1.5)

Hemoptysis (+1)

Malignancy with treatment within 6 months (+1)

Wells' PE Score

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About Wells' Criteria for PE

The Wells' Criteria for PE tool offers a robust, evidence-based method for rapidly assessing the pre-test probability of Pulmonary Embolism (PE) in patients. Primarily designed for emergency department clinicians, internists, and other healthcare professionals, this calculator systematically evaluates key clinical risk factors and symptoms, assigning a cumulative score. This score then stratifies patients into low, moderate, or high-risk categories for PE. By providing objective risk stratification, the tool streamlines clinical decision-making, guides appropriate diagnostic testing, reduces unnecessary imaging, and facilitates timely, targeted management, ultimately enhancing patient safety and optimizing resource utilization.