How to Interpret Thalassemia Screening Results
May 26, 2022
Source: Cainiu Health
Dr. Jiang Weimin
Introduction
The thalassemia screening report consists of three components. First, the complete blood count (CBC) report. If the CBC reveals anemia—specifically microcytic hypochromic anemia—thalassemia should be considered and ruled out. Additionally, microcytic hypochromic anemia may also occur in iron deficiency anemia; however, in such cases, serum iron and ferritin levels are markedly decreased.
Thalassemia is a serious genetic disorder; severe cases may even be life-threatening, prompting many individuals to undergo screening. So, how should one interpret thalassemia screening results?
How to Interpret Thalassemia Screening Results
A thalassemia screening report consists of three components. First, the complete blood count (CBC) report. If the CBC reveals anemia—specifically microcytic hypochromic anemia—thalassemia must be considered and ruled out. Microcytic hypochromic anemia may also occur in iron-deficiency anemia; however, in iron-deficiency anemia, serum iron and ferritin levels are markedly decreased, whereas in thalassemia, serum iron and ferritin levels remain normal.
Second, hemoglobin electrophoresis. The presence of abnormal hemoglobin bands on electrophoresis warrants suspicion of thalassemia. To confirm the diagnosis, further genetic testing for thalassemia is required. Third, globin chain analysis. Detection of globin chain deletions in this test strongly supports a diagnosis of thalassemia.
Thalassemia is a congenital disorder and a unique disease entity. Complete cure is extremely difficult. Management is generally tailored according to disease severity. Mild cases typically require no specific treatment—only attention to lifestyle and dietary habits is needed. In contrast, severe cases demand active treatment; otherwise, life-threatening complications may ensue. We hope this information proves helpful!
