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 Medindia » Blood test »  Hematology Test »  Fetal Hemoglobin/ HbF.
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Fetal Hemoglobin/ HbF.
Lab Test
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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Member Comments ( 1 )
I am in my 3 months pregnancy and while blood test HB f shows 23, which indicates High. What are the adverse effects because of this? Will it affect my baby?
(Posted by FINCY, Bahrain Date : 11/28/2010 )


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