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The Rh blood group system includes several antigens, with the most significant being the Rh (D) antigen. This antigen is identified by the presence of a protein called Antigen-D on the surface of red blood cells. If Antigen-D is present, the blood type is classified as Rh Positive (Rh+). If Antigen-D is absent, the blood type is Rh Negative (Rh-). In the Thai population, about 99.7% are Rh+, while only around 0.3% are Rh-, which means there are approximately 3 individuals with Rh- blood in every 1,000. Thus, Rh- blood is considered “rare” or “special.”<\/span><\/p>\n Given its rarity, the National Blood Centre of the Thai Red Cross maintains a registry of Rh- donors. In urgent situations requiring this blood type, they can quickly locate Rh- donors to assist patients.<\/span><\/p>\n For patients with Rh- blood, it is crucial that they receive only Rh- blood to prevent the production of antibodies against Antigen-D. Such antibodies can lead to compatibility issues, making it increasingly difficult to find suitable blood in the future. Additionally, compatibility problems can arise between the blood of a mother and her fetus.<\/span><\/p>\n When providing blood to patients, it is essential to consider both the ABO blood group and the Rh factor to avoid potential complications. However, since Rh- blood is quite rare in Thailand, there is a constant demand for it, which could result in shortages.<\/span><\/p>\n For Rh- women who have developed Anti-D antibodies, there is a risk for fetuses that are Rh+ (like the father). The mother’s Antigen-D can cross the placenta and destroy the fetus’s red blood cells, leading to conditions such as jaundice during pregnancy and after birth.<\/span><\/p>\n<\/p>\n The ABO blood group system is crucial and is determined by specific substances on the surface of red blood cells called antigens. There are two types of antigens: Antigen-A and Antigen-B. Each blood type also produces antibodies against the opposite blood group. For instance, a person with blood type A has Antigen-A in their red blood cells and Anti-B antibodies in their plasma.<\/span><\/p>\n Blood Type AB<\/b>: Individuals have both Antigen-A and Antigen-B on their red blood cells and do not produce either Anti-A or Anti-B antibodies.<\/span><\/p>\n<\/div>\n Main components of blood Blood group system Principles of blood donation and transfusion Blood Group System Rh Blood Group System The Rh blood group system includes several antigens, with the […]<\/p>\n","protected":false},"author":6,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-2728","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/pages\/2728","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/comments?post=2728"}],"version-history":[{"count":6,"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/pages\/2728\/revisions"}],"predecessor-version":[{"id":3664,"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/pages\/2728\/revisions\/3664"}],"wp:attachment":[{"href":"https:\/\/thaibloodcentre.tonkla.co\/en\/wp-json\/wp\/v2\/media?parent=2728"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}\n
ABO Blood Group System<\/b><\/h3>\n
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