Reticulocyte Cellular Hemoglobin
Label Mnemonic: RETHE
Epic Lab Code: LAB1145
Downtime Form: A-1a Miscellaneous Request
Hematology
6240 RCP
356-3527
Specimen(s):
Whole Blood
Collection Medium:
Lavender top tube 3 mL (EDTA)
Minimum:
Full draw; 3.0 mL lavender top; (or fingerstick-purple top microtainer®)
Testing Schedule:
24 hrs/day, 7 days a week, including holidays.
Turn Around Time:
1 hour (upon receipt in laboratory)
Reference Range:
30-40 pg
Comments:
Refer to BD Microtainer® Tubes product sheet for detailed sample collection instructions.

Other anticoagulants are not recommended.
Test Limitations:
Blood: <24 hours old if stored at room temperature <72 hours old if refrigerated
Methodology:
Reticulocytes are stained with a polymethine dye, oxazine 750 and cells analyzed for cell size and hemoglobin. Light absorption is proportional to the DNA/RNA content.
CPT Code:
85046
 
See also:
Reticulocyte Count (Automated), Whole Blood