| Suspected DVT | Yes No |
| An alternative diagnosis is less likely than PE | Yes No |
| Heart rate > 100 beats per minute | Yes No |
| Immobilization or surgery in the previous 4 weeks | Yes No |
| Previous DVT or PE | Yes No |
| Hemoptysis | Yes No |
| Malignancy (on treatment, treated in the past 6 months, or palliative) | Yes No |
