RETICULOCYTE COUNT

Code
100.6500
Name
RETICULOCYTE COUNT
Category
None
Department
Hematology
Start Date
Expiration Date
Synonyms
Retic
CPT Codes
85045
Site
Main Lab
Reference Test
ATLAS Test Code

Specimen Information

Type

Lavender, EDTA

Volume

1.5 mL

Transport Info

Refrigerated
24 hour stability

Fasting Required?
False
Patient Instructions

Reference Range

% Retic count: 0.5-2
Corrected Retic count: 0.5-2

Methodology

Flow Cytometry

Clinical Significance

Evaluate erythropoietic activity; increased in acute and chronic hemorrhage, hemolytic anemias; evaluate erythropoietic response to anti-anemic therapy.

The reticulocyte is an immature red blood cell from which the nucleus has been extruded. The reticulocyte count is a measure of effective erythropoiesis. In normal non-anemic state individual reticulocytes mature for 3 days in the marrow and are found in circulating blood only during the fourth day. The ribonucleic acid (RNA) of the reticulocyte disappears about a day after its entry into the blood. The counting of reticulocytes is an indication of the number of red blood cells being delivered by the marrow to the blood.

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