Test Results & Interpretations
This assay is useful in the diagnosis of disorders associated with abnormal forms of hemoglobin like sickle cell anemia, thalassemia.
Why Get Tested
- If you have signs or symptoms of hemolytic anemia like jaundice, fatigue, pale skin or splenomegaly
- If your complete blood count and peripheral smear indicate that you may have an abnormal form of hemoglobin
- It is commonly done as a part of newborn screening
- It may used for prenatal screening if a parent is at high risk
No special preparation required
All the results should be carefully interpreted in correlation with the patient's signs and symptoms and other laboratory findings.
- Presence of high level of sickle cell hemoglobin (HbS ) on HPLC denotes either sickle cell trait or sickle cell anemia
- Increased levels of fetal hemoglobin (HbF) on HPLC is associated with beta thalassemia major. Sometimes, it can also be seen in sickle cell anemia
- High HbA2 levels are mostly associated with beta thalassemia minor or trait. Recent studies say that HbA2 level between 4 to 9% is diagnostic of beta thalassemia trait
- Other less common hemoglobins which can be detected are hemoglobin D, J, G, M etc.