Hb HPLC (Hb Variants Estimation by HPLC)
Understanding Hb HPLC (Hb Variants Estimation by HPLC)
What is Hb HPLC (Hb Variants Estimation by HPLC)?
Hemoglobin HPLC/ Electrophoresis is used to identify the different types of hemoglobin present in the blood. Hemoglobin is a protein present inside the red blood cells that function to transport oxygen to the tissues and organs of the body. This test is done to diagnose blood disorders, as a screening test for genetic conditions, and to monitor treatment efficacy in patients having blood disorders. It also detects abnormal hemoglobin types which may interfere with the oxygen flow.
What is Hb HPLC (Hb Variants Estimation by HPLC) used for?
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As a part of a routine checkup
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To diagnose blood disorders
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To monitor the treatment in patients having abnormal hemoglobin
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As a screening test for genetic conditions
Interpreting Hb HPLC (Hb Variants Estimation by HPLC) results
Interpretations
In children
Age |
Hemoglobin F |
Newborn |
60 to 80% |
1+ Year |
1 to 2% |
In adults
Normal levels
Type of Hemoglobin |
Percentage |
Hemoglobin A |
95% - 98% |
Hemoglobin A2 |
2% - 3% |
Hemoglobin F |
1% - 2% |
|
All the results should be carefully analyzed and interpreted in correlation with the patient's signs and symptoms and other laboratory findings.
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Increased levels of fetal hemoglobin (HbF) on HPLC is associated with beta-thalassemia major. Sometimes, it can also be seen in sickle cell anemia
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High HbA2 levels are mostly associated with beta thalassemia minor or trait. Recent studies say that HbA2 level between 4% and 9% indicates beta thalassemia trait