Test directory: Reticulocyte Count

Ordering Code556
Test NameReticulocyte Count
AliasRetic Count
Preferred SpecimenWhole Blood
Preferred ContainerEDTA, K2 (Lavender)
Other Specimen/ContainerWhole Blood in EDTA, K2 Microtainer (Lavender)
Optimum VolumeFULL DRAW
Collection InstructionsDo NOT collect in 7 mL EDTA tube
Mix well.
Handling InstructionsRefrigerate specimen if transport time > 24 hours
Hand mix ONLY. Do NOT mix on mechanical rocker/mixer.
Transport RequirementsOahu: Ambient
Airline: Refrigerated
Specimen StabilityAmbient: 24 Hours
Refrigerated: 48 Hours
Rejection CriteriaFrozen, Clotted, Contaminated, Hemolyzed, Over filled tube,
Under filled tube, Specimen older than stability limits.
Avail. StatYES
Analytic Time1 Day
MethodologyAutomated cell counter or examination of New Methylene Blue stained slide.

Reference range(s)

The reference ranges listed below are valid on this date of April 18, 2024.
ComponentAgeMale NormMale Critical LowMale Critical HighFemale NormFemale Critical HighFemale Critical LowUnitsAdd'l info
Reticulocyte Count>=18Y0.64-2.260.64-2.26%
Reticulocyte Count12Y-17Y0.90-1.490.90-1.49%
Reticulocyte Count6Y-12Y0.98-1.940.98-1.94%
Reticulocyte Count2Y-6Y0.82-1.450.82-1.45%
Reticulocyte Count6M-2Y0.99-1.820.99-1.82%
Reticulocyte Count2M-6M1.55-2.701.55-2.70%
Reticulocyte Count1M-2M2.12-3.472.12-3.47%
Reticulocyte Count3D-1M1.06-2.371.06-2.37%
Reticulocyte Count0-3D3.47-5.403.47-5.40%
Retic AbsoluteALLSee report.
Immature Retic Fraction>=18Y2.3-13.43.0-15.9%
Immature Retic Fraction12Y-17Y9.0-18.79.0-18.7%
Immature Retic Fraction6Y-12Y8.9-24.18.9-24.1%
Immature Retic Fraction2Y-6Y8.4-21.78.4-21.7%
Immature Retic Fraction6M-2Y11.4-25.811.4-25.8%
Immature Retic Fraction2M-6M13.4-23.313.4-23.3%
Immature Retic Fraction1M-2M19.1-28.919.1-28.9%
Immature Retic Fraction3D-1M14.5-24.614.5-24.6%
Immature Retic Fraction0-3D30.5-35.130.5-35.1%