Reticulocyte Count




Test Mnemonic

RETIC

CPT Codes

  • 85045 - QTY (1)

LOINC ®

14196-0

Includes

  • Reticulocyte percent
  • Absolute Reticulocyte Number

Performing Laboratory

Cleveland Clinic Laboratories


Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2.5 mLWhole bloodEDTA (Lavender) RefrigeratedFill tube to at least half of fill volume.

Minimum Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
0.5 mL     

Stability

Environmental Condition Description
Ambient24 hours
Refrigerated48 hours
FrozenUnacceptable

Days Performed

Sun - Sat

Turnaround Time

8 hours

Methodology

Name Description
Automated Cell Counter 

Reference Range

Absolute Reticulocyte Number
Sex Age From Age To Type Range Range Unit
 1 Days3 DaysNormal0.1475 - 0.2164M/uL
 4 Days30 DaysNormal0.0513 - 0.1104M/uL
 31 Days60 DaysNormal0.0518 - 0.0779M/uL
 61 Days179 DaysNormal0.0482 - 0.0882M/uL
 6 Months23 MonthsNormal0.0435 - 0.1111M/uL
 2 Years5 YearsNormal0.0364 - 0.0680M/uL
 6 Years11 YearsNormal0.0424 - 0.0702M/uL
 12 Years14 YearsNormal0.0416 - 0.0651M/uL
 15 Years99 YearsNormal0.0180 - 0.1000M/uL
Reticulocyte
Sex Age From Age To Type Range Range Unit
 1 Days3 DaysNormal3.47 - 5.40%
 4 Days30 DaysNormal1.06- 2.37%
 31 Days60 DaysNormal2.12 - 3.47%
 61 Days179 DaysNormal1.55 - 2.70%
 6 Months23 MonthsNormal0.99 - 1.82%
 2 Years5 YearsNormal0.82 - 1.45%
 6 Years11 YearsNormal0.98 - 1.94%
 12 Years14 YearsNormal0.90 - 1.49%
 15 Years99 YearsNormal0.40 - 2.00%

Clinical Info

Enumeration of reticulocytes