Hemoglobinopathy Profile (HB-THAL Profile)

Tube Type

Test ID LAB5176
EPIC Order
 HEMOGLOBIN/THALASSEMIA PROFILE
CPT Code(s) 83021
Laboratory Special Hematology and Hematopathology
Tube Station 532
Specimen Routine: 3 mL blood/Lavender EDTA tube; See Comments
Micro: 250 µL blood/Lavender EDTA microtainer
Stability
7 days at 2-8°C
2 days at room temperature
Availability Routine: Test generally performed 2-3 times weekly, M-F 8:00am-5:00pm 
STAT: Available upon Director's Approval. Call the lab at 984-974-8322 during normal business hours, M-F 8:00am-5:00pm
Turnaround Time Routine 4 days.
Specimens with significant abnormalities not previously confirmed will have confirmatory testing performed once a week.
STAT: Upon Director's Approval, 6 hours
Reference Range Normal:
%HbA = 95.1-98.5%
%HbA2 = 1.5-3.5%
%HbF = 0.0-1.9%
Comment
  • Draw prior to transfusion.
  • Specimens with suspected abnormal hemoglobins will have confirmatory hemoglobin electrophoresis and/or sickle cell solubility testing performed.
  • All "Pre" Red Blood Cell exchange specimens from UNC Therapeutic Apheresis Service will be treated as STAT during our normal operational hours. 

Reviewed by J. Carr on November 13, 2025

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514