nRBCs are typically enumerated by one of the following methods:
- Manual counting of Wright-Giemsa-stained peripheral smears:
- Part of the traditional 100-cell manual differential leukocyte count.
- Reported as number of nRBCs per 100 white blood cells (WBCs).
- Automated hematology analyzers (for example, Sysmex)
- Reported as relative number of nRBCs per 100 WBCs or as an absolute number.