Eadon grading system (Eadon16)
| Intervention grade | Definition |
|---|---|
| 1 | Detrimental to patient care |
| 2 | Of no significance to patient care |
| 3 | Significant but does not improve patient care |
| 4 | Significant and improves the standard of patient care |
| 5 | Very significant; prevents major organ failure or similar |
| 6 | Potentially life-saving |