| Score | Description |
| 0 | No microcapsules seen |
| 1 | Microcapsules in 1 abdominal quadrant |
| 2 | Microcapsules in 2 - 3 quadrants |
| 3 | Microcapsules in all quadrants |
| 4 | Microcapsules in all quadrants and clumps of microcapsules seen |