Test Directory

Reticulocyte Count

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Updated Test Information:

Test Description
Reticulocyte Count
Synonym(s)
Retic
Test ID
RETIC
General Information
Evaluate erythropoietic activity which is increased in acute and chronic hemorrhage, and hemolytic anemias; evaluate erythropoietic response to antianemic therapy
Specimen Type
Whole Blood
Specimen Requirements
Lavender
Specimen Collection / Processing Instructions
Lavender - Invert tube 8 to 10 times immediately after collection
Additional Processing Details
Specimen is stable at Room Temperature 1 day Specimen is stable Refrigerated 2 days
Stability
Room Temperature: 1 day
Refrigerated: 2 days
Frozen: Unacceptable 
Unacceptable Specimen Conditions
Hemolysis; clotted specimen; specimen drawn in any anticoagulant other than EDTA; specimen diluted or contaminated with IV fluid; tube not filled with minimum volume; improper labeling; transfer tubes with whole blood; specimen received with plasma removed.
Limitations
Caution should be exercised with recently transfused patients (reticulocytes may decrease on a dilutional basis due to transfusion).
Methodology
Automated/Manual
Estimated TAT
0-2 days
Testing Schedule
Monday-Saturday, & STAT
CPT Code(s)
85046
Minimum Sample Volume
0.5 mL of Whole Blood
Pediatric Min. Volume (if applicable)
500 μL for pediatric microtainer capillary tubes; fill tube to capacity.
Reference Range

 

RET% 1.0 – 2.6
RET# 47 – 152  10³µL
RET-He 28 – 37
Reflex Conditions
None
Performing Lab
Incyte Diagnostics
LOINC Code(s)
17849-1