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Test Code 010 Reticulocyte Count

Additional Codes


PowerChart: Reticulocyte Count (% and #)

MA Cerner: Retic Count

Specimen Requirement

EDTA whole blood is required.

Additional Specimen Collection Information

Whole blood collected in EDTA purple-top tube. The tube must be at least one quarter full to be acceptable for testing.

Capillary specimen collected in EDTA microtube. The  tube must contain at least 375 mcL (bottom line) to be acceptable for testing.

Useful For

Monitoring reticulocyte count

Screening tool to confirm a hematologic disorder.

Establish or rule out a diagnosis.

Detect an unsuspected hematologic disorder.

Monitor effects of radiation or chemotherapy.


Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite orders: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT orders: Typically completed within 30 minutes after the specimen arrives at the testing site.

CPT Code Information

85045 Blood Counts: reticulocyte, automated

LOINC Code Information

60474-4 Reticulocytes [#/volume] in Blood By Automated Count

Test Method

Sysmex XN and XS Systems:

  • Reticulocyte Count: Flow cytometry

Reference Values

0-14 Days: 239-404 x thou/mcL

14 Days-12 Years: 46-154 x thou/mcL

≥ 12 Years: 59 - 146 x thou/mcL