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 |