Table 1.
NRSS Stage Reference Table
| Stage Number |
Stage Name | OA/D ratio |
Tentacles | Tentacle L/W ratio |
Pharynx | Mesentery L/H ratio |
Number of pleated mesenteries |
Additional Characteristics |
|---|---|---|---|---|---|---|---|---|
| 0 | Open Wound | <= 1.5 | - | - | - | - | - | Immediately post-amputation |
| 0.5 | - | - | - | - | - | Dynamic constriction visible around open wound | ||
| 1 | Wound Closed | - | - | - | - | - | Site of closed wound may appear disorganized | |
| 1.5 | - | - | - | - | - | Arches begin to inflate | ||
| 2 | Radial Arches | - | - | - | - | - | Radial array of inflated arches; +/− blebs | |
| 2.5 | Variable | Buds may be visible | <= 1 | a darkening may be visible sub-orally | - | - | +/− blebs | |
| 3 | Tentacle | > 1.5 | Clearly defined tentacles | > 1 | pharynx may be visible sub-orally | - | - | |
| 3.5 | Increasing number and length | > 2 | < 2 | 0 | Increased inflation and transparency | |||
| 4 | Linear Mesentery | distinct visible pharynx | > 2 | No pleating visible, even upon contraction | ||||
| 4.5 | <= 4 | Increased stimulus reactivity, pleating possibly visible only upon contraction | ||||||
| 5 | Pleated Mesentery | > 4 | NRSS complete |