Reticulocytes, Percent and Number

0040022
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Example Reports
Low
Normal
Ordering Recommendation

Use to assess erythropoiesis in hematologic conditions. 

Mnemonic
RETICULOCY
Methodology

Flow Cytometry

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Specimen Required
Patient Preparation
Collect

Lavender (EDTA) or pink (K2EDTA).

Specimen Preparation

Do not freeze. Transport 3 mL whole blood . (Min: 0.5 mL)

Storage/Transport Temperature

Refrigerated.

Unacceptable Conditions

Frozen specimens. Clotted or hemolyzed specimens.

Remarks
Stability

Ambient: 24 hours; Refrigerated: 48 hours; Frozen: Unacceptable

Reference Interval
Test Number
 Components
 Reference Interval
0040280 Reticulocytes Effective May 16, 2016
Age
 0-13 days
 14 days and older
% 2.7-6.6 1.0-2.6

  Reticulocyte Number Effective May 16, 2016
Age 0-13 days 14 days and older
Male (K/µL) 39.6-137.5 47-152
Female (K/µL) 39.6-137.5 47-127

Interpretive Data



Compliance Category

FDA

Note
Hotline History
N/A
CPT Codes

85045

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Components
Component Test Code* Component Chart Name LOINC
0040023 Reticulocyte Number 60474-4
0040280 Reticulocytes Percent 17849-1
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Reticulocyte index
Reticulocytes, Percent and Number