Clinical Prediction Rules for Pulmonary Embolism (PE) Probability
| These clinical prediction rules combine elements from the history and examination to determine the probability of PE, stratified either as low/intermediate/high, or as unlikely/likely: this guides further management | |||
|---|---|---|---|
| Rule | Method | Interpretation | Online calculator |
| Original Wells (Ann Intern Med 1998; 129: 997-1005) | 7 elements scored (including assessment of probability of alternative diagnosis to PE) Total score of 0–12.5 points | <2: low risk of PE 2–6: intermediate risk >6: high risk | https://www.mdcalc.com/wells-criteria-pulmonary-embolism |
| Modified Wells (Thromb Haemost 2000; 83: 416-420) | ≤4: PE unlikely >4: PE likely | https://www.mdcalc.com/wells-criteria-pulmonary-embolism | |
| Revised Geneva (Ann Intern Med 2006; 144: 165-171) | 8 elements scored Total score of 0–22 points | 0–3: low risk 4–10: intermediate risk ≥11: high risk | https://www.mdcalc.com/geneva-score-revised-pulmonary-embolism |