Hemoglobinopathy Evaluation
Test Code
35489
83020, 85014, 85018, 85041
CPT Code is subject to a Medicare Limited Coverage Policy and may require a signed ABN when ordering.
Clinical Significance
Hemoglobinopathy Evaluation - The detection and proper identification of hemoglobinopathies and thalassemias is an important aspect of the evaluation of patients with anemia, microcytosis and erythrocytosis.
Test Resources
None found for this test
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Please visit our Clinical Education Center to stay informed on any future publications, webinars, or other education opportunities.
Test Details
Hemoglobin A, Hemoglobin F, Hemoglobin A2 (Quant), Hemoglobin S, Hemoglobin C, Hemoglobin E, and any hemoglobin variants
Red Blood Cell Count, Hemoglobin, Hematocrit, MCV, MCH, RDW
Red Blood Cell Count, Hemoglobin, Hematocrit, MCV, MCH, RDW
Methodology
Electronic Sizing and Counting/Cytometry • Capillary Electrophoresis followed by, if necessary, High Performance Liquid Chromatography (HPLC)
Reference Range(s)
See Laboratory Report
Alternative Name(s)
HGB Evaluation,Hemoglobin A2,Hemoglobin Variants,HGB Variants,Hemoglobin Electrophoresis,HGB Electrophoresis,Hemoglobin S,Thalassemia Screen,HB A2,HB F,HB S,Hemoglobin F
Preferred Specimen(s)
1 full (5 mL) EDTA (lavender-top) tube
Alternative Specimen(s)
Whole blood collected in an EDTA (tan-top), (pink-top) or (royal blue-top) tube
Minimum Volume
1 mL
Collection Instructions
Patient age and ethnicity are necessary for proper interpretation.
Blood transfusions within the last 4 months may affect results.
Note: If tube drawn is shared with lead testing, trace metal-free EDTA (i.e. royal blue-top or tan-top) tube is required.
Transport Container
EDTA (lavender-top) tube
Specimen Stability
Room temperature: 72 hours
- Refrigerated: 7 days
- Frozen: Unacceptable
Reject Criteria
Gross hemolysis • Clotted
Setup Schedule, Transport Temperature
1 full (5 mL) EDTA (lavender-top) tube
Whole blood collected in an EDTA (tan-top), (pink-top) or (royal blue-top) tube
1 mL
Patient age and ethnicity are necessary for proper interpretation.
Blood transfusions within the last 4 months may affect results.
Note: If tube drawn is shared with lead testing, trace metal-free EDTA (i.e. royal blue-top or tan-top) tube is required.
Blood transfusions within the last 4 months may affect results.
Note: If tube drawn is shared with lead testing, trace metal-free EDTA (i.e. royal blue-top or tan-top) tube is required.
EDTA (lavender-top) tube
Room temperature: 72 hours
Refrigerated: 7 days
Frozen: Unacceptable
Gross hemolysis • Clotted