Classification of pulmonary embolism
| Massive |
| Sustained hypotension: systolic blood pressure < 90 mm Hg for at least 15 minutes OR requiring inotropes (cannot be due to another cause) |
| Pulseless |
| Persistent bradycardia (≤ 40 beats per minute with signs or symptoms of shock) |
| Submassive |
| Systolic blood pressure ≥ 90 mm Hg |
| Right ventricular dysfunction or myocardial necrosis |
| Low risk |
| Normal blood pressure |
| Normal biomarker levels |
| No right ventricular dysfunction |
Adapted from information in reference 3.