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Test Code Lab296 Reticulocyte Count, Blood

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Sysmex XN (Flow Cytometry)

 

Literature References:

Resource Manual:  Sysmex XN-Series Automated Hematology Systems, Document Number:  1002-LSS, Rev. 2, January 2013

Specimen Requirements

Specimen Type: Whole blood
Container/Tube: Lavender top (EDTA)

Specimen Volume: Full tube

Specimen Minimum Volume: 1 mL
Collection Instructions: Immediately invert tube several times to mix blood.

Day(s) Test Set Up

Monday through Sunday

Turnaround Time (STAT, Routine)   

STAT: 1 hour after receipt in laboratory

Routine: 2-4 hours after receipt in laboratory

Test Classification and CPT Coding

85046

Reference Values

Retic %:  0.4%-2.90% of total red cells

Retic absolute:  0.020-0.087 M/cumm

Ret-He: 30.5-38.0 pg

 

Literature References:

McKenzie S. Clinical laboratory hematology, Pearson Prentice Hall, 2004;54-6.

 

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Alternate Tube:

If pink-top (EDTA) tube is available, testing can be performed manually.

Analyte Stability:

<24 hours refrigerated

Laboratory Processing Instructions:
Test performed in BJH Core Lab.

LOINC Code Information

Name LOINC Code
Reticulocyte % 17849-1
Reticulocyte # 60474-4
Ret-He 71694-4