Microscopic evaluation for platelet clumps
| Group | Prevortex | Postvortex | Total, N |
|---|---|---|---|
| 1 minute | Absent | Absent | 23 |
| Present | 3 | ||
| Present | Absent | 4 | |
| Present | 10 | ||
| 2 minutes | Absent | Absent | 18 |
| Present | 9 | ||
| Present | Absent | 0 | |
| Present | 13 | ||
| 3 minutes | Absent | Absent | 20 |
| Present | 6 | ||
| Present | Absent | 4 | |
| Present | 10 |