Test directory: Reticulocyte Count

Ordering Code 556
Test Name Reticulocyte Count
Alias Retic Count
Preferred Specimen Whole Blood
Preferred Container EDTA, K2 (Lavender)
Other Specimen/Container Whole Blood in EDTA, K2 Microtainer (Lavender)
Optimum Volume 3 mL
Microtainer = 500 uL
Collection Instructions Do NOT collect in 7 mL EDTA tube
Mix well
EDTA tubes must be filled with at least 50% of the draw volume.
Handling Instructions Refrigerate specimen if transport time > 24 hours
Hand mix ONLY. Do NOT mix on mechanical rocker/mixer.
Transport Requirements Oahu: Ambient
Airline: Refrigerated
Specimen Stability Ambient: 24 Hours
Refrigerated: 48 Hours
Rejection Criteria Frozen, Clotted, Contaminated, Hemolyzed, Over filled tube,
Under filled tube, Specimen older than stability limits.
Avail. Stat YES
Analytic Time 1 Day
Methodology Automated cell counter or examination of New Methylene Blue stained slide.

Reference range(s)

Component Age Male Norm Male Critical Low Male Critical High Female Norm Female Critical High Female Critical Low Units Add'l info
Reticulocyte Count 0-3D 3.47-5.40 3.47-5.40 %
Reticulocyte Count 3D-1M 1.06-2.37 1.06-2.37 %
Reticulocyte Count 1M-2M 2.12-3.47 2.12-3.47 %
Reticulocyte Count 2M-6M 1.55-2.70 1.55-2.70 %
Reticulocyte Count 6M-2Y 0.99-1.82 0.99-1.82 %
Reticulocyte Count 2Y-6Y 0.82-1.45 0.82-1.45 %
Reticulocyte Count 6Y-12Y 0.98-1.94 0.98-1.94 %
Reticulocyte Count 12Y-17Y 0.90-1.49 0.90-1.49 %
Reticulocyte Count ADULT 0.64-2.26 0.64-2.26 %
Retic Absolute ALL See report.
Immature Retic Fraction 0-3D 30.5-35.1 30.5-35.1 %
Immature Retic Fraction 3D-1M 14.5-24.6 14.5-24.6 %
Immature Retic Fraction 1M-2M 19.1-28.9 19.1-28.9 %
Immature Retic Fraction 2M-6M 13.4-23.3 13.4-23.3 %
Immature Retic Fraction 6M-2Y 11.4-25.8 11.4-25.8 %
Immature Retic Fraction 2Y-6Y 8.4-21.7 8.4-21.7 %
Immature Retic Fraction 6Y-12Y 8.9-24.1 8.9-24.1 %
Immature Retic Fraction 12Y-17Y 9.0-18.7 9.0-18.7 %
Immature Retic Fraction ADULT 2.3-13.4 3.0-15.9 %
Immature Platelet Fraction ALL 0.8-6.1 0.8-6.1 %