| turn pink | 0.35 |
| incubate at 37°c | 0.31 |
| disinfectant | 0.31 |
| positive | 0.67 |
| collected | 0.68 |
| cultured | 0.55 |
| removed | 0.55 |
| transported to the labo… | 0.47 |
| tested | 0.47 |
| moistened with an antis… | 0.42 |
| taken the region | 0.31 |
| reused | 0.25 |
| stored dry | 0.25 |
| rubbed over surface | 0.25 |