Reticulocyte Count, Automated

Test Code

LAB296

Alias/See Also

Retic

CPT Codes
85044

Includes

Reticulocyte count by flow cytometry. Rarely, interfering substances may preclude the automated method. In this case, reticulocytes will be counted by slide microscopy

Instructions

"Routine venipuncture
Collect one 4.0ml Lavender top (EDTA) tube or 1 mL; one EDTA Microtainer™ (300 mcL each) (pediatric)"

Specimen Stability

Room temperature, stable 48 hours.

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

Insufficient quantity; clotted specimen; >48 hours at room temperature; improperly labeled specimen

Methodology
Flow cytometry using the triple transducer module

Setup Schedule

Daily

Report Available

Daily

Reference Range

"Reticulocyte Count (Corrected for patient hematocrit):
      Age: 0 Days to 7 Days: 2.5-6.5%
              8 Days to 1 month: 0.5-3.1%
              6 Months to Adult: 0.5-2.0%
Patietn Hematocrit:
      Age: 0 Days to 1 Day : 42.0-6.0%
             2 Days to 7 Days: 45.0-67.0%
             8 Days to 14 Days: 42.0-62.0%
             15 Days to 1 Month: 39.0-63.0%
             1 Month - 2 Month: 31.0-51.0%
            2 Month to 6 Month: 28.0-42.0%
             7 Months to 1 Year: 29.0-41.0%
            1 Year to 2 Year: 33.0-39.0%
            2 year to 6 Year: 34.0-40.0%
           6 Year to 10 Year: 35.0-45.0%
           10 Year to 16 Year (Female): 36.0-47.0%
             10 Year to 16 Year (Male): 37.0-49.0%
           16 Year to 150 Year (Female): 36.0-47.0%
            16 Year to 150 year (Male):   42.0-52.0%
Hematocrit Critical Values:
Age: 0-1 Month: Low 30.9%, High 70.1%
Age: 2 Months to 150 Years: Low 20.9%, High 60.1%"

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.