Wells Score Calculator (PE)
Assess clinical probability of pulmonary embolism using the Wells criteria.
Wells Criteria for PE
Wells Score
0
Low Risk
PE Probability: 1.3%
Three-Tier Risk
Low Risk
Two-Tier Risk
PE Unlikely
Clinical Recommendation
Consider D-dimer testing. If negative, PE can be ruled out. PERC rule may apply.
Risk Stratification
Three-tier model:
- 0-1: Low risk (1.3%)
- 2-4: Moderate risk (16.2%)
- > 4: High risk (37.5%)
Two-tier model:
- ≤4: PE unlikely (12.1%)
- > 4: PE likely (37.1%)