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Automated Reticulocyte Count

Test Code



Testing performed on the Sysmex XN-1000 Hematology Analyzer.

Test Utility

Reticulocytes are immature red blood cells with a life span in peripheral blood of 1 to 2 days, before they mature to RBCs. Being immature, some basophilic substance or inclusions are found in them. They are a measure of erythropoietic activity of the bone marrow.

Specimen Storage and Stability

Samples stored refrigerated at 2-8°C are stable for 72 hours. Allow refrigerated samples to come to room temperature at least 15 minutes and mix well before analysis.

Specimen Collection and Preparation

Specimen Rejection

  • Improperly Labeled

  • Frozen specimens

  • Clotted Specimens

  • Grossly hemolyzed specimens

Reference Ranges


Monday - Saturday, 16 hours a day.

Result available after getting the specimen in 5 hours.

STAT results available within 2 hours of receipt in the Laboratory.

*NOTE: All Specimen Refrigerated (2-8°C) for 7 days only.


Vibra Health Laboratory

Phone: (248) 846-0663

1307 Allen Dr, Suite A, Troy, MI 48083

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