PE severity index (adapted from Aujesky et al9)
| Predictor | Points |
|---|---|
| Demographic | |
| Age, per year | Age, in years |
| Men | +10 |
| Comorbidities | |
| Cancer | +30 |
| Heart failure | +10 |
| Chronic lung disease | +10 |
| Clinical findings | |
| Pulse ≥110 | +20 |
| Systolic blood pressure <100 mm Hg | +30 |
| Respiratory rate ≥30 | +20 |
| Temperature <36 | +20 |
| Altered mental status | +60 |
| Saturations <90% | +20 |
Total points: ≤65 class I (very low risk), 66–85 class II (low risk), 86–105 class III (intermediate risk), 106–125 class IV (high risk), ≥126 class V (very high risk).