Distribution of differential flags requiring manual peripheral blood smear review
| Instrument flags | No of flagged instances | |
| Solid tumour malignancies, % | Haematological malignancies, % | |
| Nucleated red blood cells (NRBC) | 512 (33) | 256 (20) |
| Blasts/abnormal lymphoid | 386 (25) | 297 (23) |
| Monocytosis (≥1.5×103/µL or ≥30%) | 106 (7) | 167 (13) |
| Immature granulocytes | 189 (12) | 137 (11) |
| WCC abnormal scattergram | 123 (8) | 112 (9) |
| Atypical lymphoid | 127 (8) | 51 (4) |
| Previous sample with blasts | 65 (4) | 167 (13) |
| Eosinophilia (≥20%) | 35 (2) | 10 (0.8) |
| Absolute lymphocytosis (≥5×103/µL) | 25 (2) | 93 (7) |
| Basophilia (≥1×103/µL or ≥5%) | 4 (0.3) | 9 (0.7) |
| New patient with WCC >11×109/L | 1 (0.1) | 1 (0.1) |
| Total flags | 1573 | 1300 |
WCC, white cell count.