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  2. Rh factor testing - Wikipedia

    en.wikipedia.org/wiki/Rh_factor_testing

    The RhD gene that codes for the RhD antigen is located on chromosome 1. This chromosome contains gene instructions for making proteins in the body. [3] RhD is a dominant gene, meaning that as long as at least one RhD gene is inherited from a single parent, the RhD antigen is expressed.

  3. RHD (gene) - Wikipedia

    en.wikipedia.org/wiki/RHD_(gene)

    The RHD gene codes for the RhD erythrocyte membrane protein that is the Rh factor antigen of the Rh blood group system. [6] RHD has sequence similarity to RHCE, RhAG, RhBG, and RhCG and these five genes constitute the Rh family. It was proposed that the erythrocyte Rh complex is a heterotrimer of RhAG, RhD, and RhCE protein subunits. [7]

  4. Blood compatibility testing - Wikipedia

    en.wikipedia.org/wiki/Blood_compatibility_testing

    Blood compatibility testing is routinely performed before a blood transfusion.The full compatibility testing process involves ABO and RhD (Rh factor) typing; screening for antibodies against other blood group systems; and crossmatching, which involves testing the recipient's blood plasma against the donor's red blood cells as a final check for incompatibility.

  5. Rh blood group system - Wikipedia

    en.wikipedia.org/wiki/Rh_blood_group_system

    However, there are exceptions: for instance, Japanese and black Africans may have an intact gene that is not expressed or only at very low levels. [27] The gene codes for the RhD protein on the red blood cell membrane. D− individuals who lack a functional RHD gene do not produce the D antigen and may be immunized by D+ blood. [citation needed]

  6. Rh disease - Wikipedia

    en.wikipedia.org/wiki/Rh_disease

    Rh disease (also known as rhesus isoimmunization, Rh (D) disease, or rhesus incompatibility, and blue baby disease) is a type of hemolytic disease of the fetus and newborn (HDFN). HDFN due to anti-D antibodies is the proper and currently used name for this disease as the Rh blood group system actually has more than 50 antigens and not only the ...

  7. Rh deficiency syndrome - Wikipedia

    en.wikipedia.org/wiki/Rh_deficiency_syndrome

    Vos originally described Rh-deficiency syndrome in 1961, when a sample of blood failed to respond with several Rh antisera. However, R. Ceppellini used the term "Rhnull" for the first time. So far, at least 43 people from 14 families have been reported in the literature as having the Rhnull phenotype. [4]

  8. Rheumatic fever - Wikipedia

    en.wikipedia.org/wiki/Rheumatic_fever

    The last revision of 2015 suggested variable diagnostic criteria in low-risk and high-risk populations to avoid overdiagnosis in the first category and underdiagnosis in the last one. [34] Low-risk populations were defined as those with acute rheumatic fever annual incidence ≤2 per 100 000 school-aged children or all-age rheumatic heart ...

  9. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...