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