Cell grading systems of Laboratory Medicine (5th Edition)
| Grade | Cells/HPF | Grade | Cells/HPF |
|---|---|---|---|
| Grade 1 | <1 | Grade 4 | 10∼29 |
| Grade 2 | 1∼4 | Grade 5 | ≥30 |
| Grade 3 | 5∼9 | Grade 6 | ≥1/2 field of view |
Abbreviations: HPF, high power field; LPF, low power field.
Source: Textbook of Laboratory Medicine, 5th ed, 2014.
