Reticulocyte Cellular Hemoglobin

Label Mnemonic:	RETHE
Epic code:	LAB1145
Order form:	Laboratory Requisition
Supply order:	Supply Order Form
Billing:	Billing Policies
CPT code:	85046

Specimen(s):

Whole Blood

Collection Medium:

Lavender top tube 3 mL (EDTA)

Minimum:

Full draw; 3.0 mL lavender top; (or fingerstick-purple top microtainer^®)

Testing Schedule:

24 hrs/day, 7 days a week, including holidays.

Turn Around Time:

1 hour (upon receipt in laboratory)

Reference Range:

30-40 pg

Comments:

Refer to BD Microtainer^® Tubes product sheet for detailed sample collection instructions.

Test Limitations:

Blood:  <24 hours old if stored at room temperature
        <72 hours old if refrigerated

Methodology:

Reticulocytes are stained with a polymethine dye, oxazine 750 and cells analyzed for cell size and hemoglobin. Light absorption is proportional to the DNA/RNA content.

Sample Processing:

Lavender tube is sent as whole blood, no processing necessary.

Sample Storage:

Refrigerate, 2-8°C.

Transport Instructions:

Place labeled specimen into zip-lock type biohazard bag; seal bag.
Place requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.

See also:
Reticulocyte Count (Automated), Whole Blood