Children's Mercy Hospitals and Clinics
Name
Reticulocyte Count

Synonyms
Retic Count

CMH Lab Section
Hematology

Specimen Requirements
1 mL in 3 mL EDTA lavender top tube or
250 uL in microtainer

Availability
STAT, Urgent, Routine

Turn Around Time
STAT: 1 hour
Routine: 2-4 hours

Methodology
Sysmex

Ranges
Absolute Retic
Age

Reference Range

1-6 days

0.060-0.310 X 106

7-30 days

0.050-0.110 X 106

1-6 months

0.038-0.110 X 106

>6 months

0.025-0.110 X 106


Immature Retic Fraction (IRF)
Age

Reference Range

1-6 days

8-35%

7-30 days

5-25%

>1 month

3-20%



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