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Fetal Hemoglobin
Test Code513
CPT Codes
83020
Preferred Specimen
5 mL whole blood collected in an EDTA (lavender-top) tube
Patient Preparation
Blood transfusions within the last 4 months may affect results
Minimum Volume
1 mL
Instructions
If a CBC is also ordered, submit a separate EDTA (lavender-top) tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 5 days
Refrigerated: 7 days
Frozen: Unacceptable
Refrigerated: 7 days
Frozen: Unacceptable
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis• Clotted
Methodology
Capillary Electrophoresis
Setup Schedule
A.M.
Clinical Significance
Fetal hemoglobin is increased in sickle cell anemia, leukemias, beta-thalassemia and hereditary persistence of fetal hemoglobin. The production of fetal hemoglobin may be triggered as a response to sickle crisis.
