Wells Criteria for PE Calculator
Health & FitnessCalculate the Wells Criteria score used to estimate the clinical probability of pulmonary embolism.
Wells Score
Total Wells Criteria score for PE. Educational reference only, not a substitute for clinical judgment.
Risk Category (3-Tier)
Low probability
Traditional 3-tier risk stratification.
Risk Category (2-Tier)
PE unlikely
Simplified 2-tier stratification, sometimes used to decide between D-dimer testing and direct imaging.
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Odeh Ahwal0people find this calculator helpful
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Frequently Asked Questions
What is the Wells Criteria for PE used for?
The Wells Criteria for pulmonary embolism (PE) is a clinical prediction rule that estimates the probability of PE based on symptoms, risk factors, and clinical judgment, helping guide whether D-dimer testing or direct imaging is appropriate next.
How is a low Wells score typically used?
A low or PE-unlikely score is often used alongside a D-dimer blood test; if the D-dimer is also negative, PE can often be reasonably excluded without imaging.
How is a high Wells score typically used?
A high or PE-likely score often leads directly to imaging, such as CT pulmonary angiography, rather than D-dimer testing, since a positive score already suggests a high enough probability to warrant direct confirmation.
Is this calculator a substitute for medical advice?
No. This is an educational reference implementation of the standard Wells Criteria for PE, not a substitute for a physicians clinical assessment.
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