Wells criteria

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Background

Used to determine pre-test probability when evaluating patients for possible pulmonary embolism.

Criteria and Score

Wells Criteria & Score

Clinical Features Points
Symptoms of DVT (leg swelling and pain with palpation) 3.0
PE as likely as or more likely than an alternative diagnosis 3.0
HR >100 bpm 1.5
Immobilization for >3 consecutive days or surgery in the previous 4 weeks 1.5
Previous DVT or PE 1.5
Hemoptysis 1.0
Malignancy (receiving treatment, treatment stopped within 6 mon, palliative care) 1.0
Pre-test Probability Total Points
Low < 2.0
Moderate 2.0-6.0
High > 6.0

See Also

External Links

References

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Authors:

Ross Donaldson