Reticulated Hemoglobin Equivalent

Test Code

RETHE - NOCO

CPT Codes
85046

Preferred Specimen

4.5 mL whole blood from Purple EDTA

Minimum Volume

0.5 mL
0.25 mL (Microtainer EDTA)
Note: For neonate requirements see Neonate Minimum Blood Volumes

Specimen Stability

Specimen Type	Temperature	Time
Whole Blood EDTA	Ambient	24 hours
Whole Blood EDTA	Refrigerate	48 hours

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gross hemolysis, clotted

Setup Schedule

Monday through Sunday; Continuously

Report Available

Same day

Reference Range

0-1 month: 27.5-35.5 pg
>1 month: 30.5-41.0 pg
Pediatric: Less than 27.5 pg is indicative of iron deficiency.
Adults: The RET-He threshold for defining iron deficiency in adults is less than 29 pg. (KDOQI Guideline)

Performing Laboratory
Banner Fort Collins Medical Center Laboratory
McKee Medical Center Laboratory
North Colorado Medical Center Laboratory
Summit View Laboratory

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.