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Haemoglobin test results Blood test result is below - Hemoglobin A2 - 3.2%. Hemoglobin F - 0.2%. Hemoglobin C, D, S are not detected. Is this normal?
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Hemoglobin A2 (HbA2) is a normal variant of hemoglobin A that consists of two alpha and two delta chains (?2?2) and is found at low levels in normal human blood. Hemoglobin A2 may be increased in beta thalassemia or in people who are heterozygous for the beta thalassemia gene. HbA2 exists in small amounts in all adult humans (1.5-3.1% of all hemoglobin molecules) and is approximately normal in people with sickle-cell disease.Its biological importance is not yet known. Not Finding Haemoglobin C,D, S is good.
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