INVESTIGATION CHARACTERISTIC RED BLOOD CELL IN GIEMSA STAINING AND BCB STAINING OF α-THALASSEMIA MODERATE PATIENTS AT CAN THO HEMATOLOGY - BLOOD TRANSFUSION HOSPITAL IN 2021-2022
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Abstract
Background: α-thalassemia trait patients are asymptomatic or have few symptoms, but they can pass α-globin genes mutated to the next generation. Moderate α-thalassemia (HbH) illustrates anemia at an average level with a variety of symptoms, causing many serious consequences, and affecting the development of the patient, family, and society. The diagnosis of α-thalassemia trait cases is necessary to limit the creation of moderate-severe forms and diagnose moderate α- thalassemia cases for timely and reasonable treatment. Peripheral blood smear with giemsa staining and BCB (Brilliant Cresyl Blue) staining slides is a vital screening technique. Objectives: To describe characteristics of erythrocytes on Giemsa and BCB. Materials and method: A cross-sectional descriptive study on 30 patients have been diagnosed α-thalassemia trait and HbH. Results: In 30 cases, 100% of red blood cells had anisocytosis (almost microcytes) and poikilocytosis, some patients had nuclear red blood cells (27%) and body Howell-Jolly (23%) on the Giemsa staining smear. The rate of reticulocyte increased with the average proportion standing at 5.37% and had HbH with an average rate of 0.23% on the BCB staining smear. Conclusion: Moderate α-thalassemia (HbH) changes red blood cells’ shape and size on the Giemsa staining, increases reticulocytes and appears HbH on BCB staining.
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Keywords
α-thalassemia, red blood cell characteristics
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