The reticulocyte count (RET) measures the number of newly formed (young) red blood.
Reticulocytes cells do not have nucleus and contain a reticular (lesh-like) network of ribosomal RNA RNA.
The number of reticulocytes is a good indicator of bone marrow activity and the reticulocyte analysis is specifically recommended for differential diagnosis of anemia :
- Classify and monitor anemias (regenerative and non-regenerative anemias),
- Iron-deficiency anemias
- Detect and monitor the erythropoietic response.
Reticulocytes parameters can be provided by laser fluorescence method : RET count (# %), content of RNA in reticulocytes (RET h, RET m, RET l), content of hemoglobin of reticulocyte (RHC), mean volume or reticulocyte (MRV), immature reticulocyte fraction (IRF) and corrected reticulocyte count (CRC).