Table 2 MESS Absolute indication for amputation: >7
| Energy | Low | 1 |
| Medium | 2 | |
| High | 3 | |
| very high | 4 | |
| Ischemia | Perfused | 1 |
| Pulse absent | 2 | |
| Cool, paralyzed,insensate | 3 | |
| Shock | SBP > 90 | 0 |
| Transient | 1 | |
| Hypotension persistent hypotension | 2 | |
| Age (years) | <30 | 0 |
| 30–50 | 1 | |
| >50 | 2 |