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| Hematology Test |
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Fetal Hemoglobin/ HbF. |
| Test |
Fetal Hemoglobin/ HbF. |
| Indication |
The test is used to evaluate hemaglobinopathies, hemolytic anemia, hereditary persistence of fetal hemoglobin, Thalassemia. |
| Physiology |
Fetal hemoglobin is formed of two α-chains and two γ-chains. It is the major hemoglobin during fetal life. HbF levels decrease after birth by 3% to 4% each week. In 2-3 weeks fetal hemoglobin is about 65%. By 6 months of age fetal hemoglobin is < 2% of the total hemoglobin. |
| Normal Range |
0 – 6 months : Upto 75% of HbF, 6 months - Adult: Up to 2% HbF |
| Interpretation |
Click Here To View Conditions Associated with Increase in Fetal Hemoglobin |
| Related Tests |
Hemolytic disease of newborn, Kleinauer-betke, Sickle Cell test |
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