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HelpTest Code LAB1232134 Hemoglobin F Distribution, Blood
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Hb F Distribution, BSpecimen Type
Whole Blood EDTAOrdering Guidance
This test is for hereditary persistence of fetal hemoglobin only. For testing for possible fetal-maternal bleed, see FMB / Fetomaternal Bleed, Flow Cytometry, Blood.
Specimen Required
Only orderable as a reflex. For more information see:
-HAEV1 / Hemolytic Anemia Evaluation, Blood
-HBEL1 / Hemoglobin Electrophoresis Evaluation, Blood
-MEV1 / Methemoglobinemia Evaluation, Blood
-REVE2 / Erythrocytosis Evaluation, Blood
-THEV1 / Thalassemia and Hemoglobinopathy Evaluation, Blood
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Clotted blood | Reject |
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole Blood EDTA | Refrigerated | 14 days |
Specimen Minimum Volume
0.5 mL
Day(s) Performed
Monday through Friday
Specimen Retention Time
1 weekReport Available
3 to 5 daysReference Values
Only orderable as a reflex. For more information see:
-HAEV1 / Hemolytic Anemia Evaluation, Blood
-HBEL1 / Hemoglobin Electrophoresis Evaluation, Blood
-MEV1 / Methemoglobinemia Evaluation, Blood
-REVE2 / Erythrocytosis Evaluation, Blood
-THEV1 / Thalassemia and Hemoglobinopathy Evaluation, Blood
Reported as: Heterocellular, Homocellular, or Equivocal
Useful For
Distinguishing large deletional hereditary persistence of fetal hemoglobin from other conditions with increased percentage of fetal hemoglobin (Hb F)
Determining the distribution of Hb F within red blood cells
CPT Code Information
88184
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| HPFH | Hb F Distribution, B | 4579-9 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8270 | Hb F Distribution, B | 4579-9 |
| 2104 | Interpretation | 59466-3 |