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Diagnosis of alpha-thalassemia is primarily by laboratory evaluation and molecular diagnosis. Alpha-thalassemia can be mistaken for iron-deficiency anaemia on a full blood count or blood film, as both conditions have a microcytic anaemia. Serum iron and serum ferritin can be used to exclude iron-deficiency anaemia. [3]
The severity of alpha and beta thalassemia depends on how many of the four genes for alpha globin or two genes for beta globin are faulty. [2] Diagnosis is typically by blood tests including a complete blood count, special hemoglobin tests, and genetic tests. [3] Diagnosis may occur before birth through prenatal testing. [9]
A newly developed diagnostic test, called Immunochromatography (IC) Strip Tests, uses monoclonal antibodies to detect Hemoglobin Barts in red blood cells' lysate. This diagnostic test is validated for positive and negative predictive values. It is also cheap and easy, making regular screening for alpha-thalassemia a plausible possibility. [9] [10]
Alpha-thalassemia (α-thalassemia) is defined by a lack of α-globin chain production in hemoglobin, and those who carry a mutation impacting the α-globin chain on only one chromosome are considered to have a “silent” α-thalassemia whereas, if the mutation is on both then it is considered an α-thalassemia trait.
Hemoglobin H disease, also called alpha-thalassemia intermedia, is a disease affecting hemoglobin, the oxygen carrying molecule within red blood cells. It is a form of Alpha-thalassemia which most commonly occurs due to deletion of 3 out of 4 of the α-globin genes. [1]
Thalassemia is an inherited condition that has variants in alpha or beta globin genes that result in lower levels of globin chains required to make hemoglobin, resulting in alpha thalassemia or beta thalassemia, respectively. [3] Diagnosis is made by DNA analysis for alpha thalassemia and hemoglobin analysis for beta thalassemia. [3] Management ...
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