Hdn Information and Courses from MediaLab, Inc.
These are the MediaLab courses that cover Hdn and links to relevant pages within the course.
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| Immunoglobulin The predominant immunoglobulin class for the B antibodies produced by individuals with group A phenotype and the A antibodies produced by individuals with group B phenotype is IgM. Small quantities of IgG may also be present. IgG is the predominant immunoglobulin for the anti-A and anti-B antibodies found in individuals with group O phenotype. Infants of group O mothers are at higher risk for hemolytic disease of the newborn (HDN) than those born to mothers with group A or B because IgG immunoglobulins readily cross the placenta. IgM molecules do not readily cross the placenta because of their larger size. It is important to note that immune antibodies are usually IgG. Both naturally occurring and immune ABO antibodies are critically important in transfusion since both sensitize and usually hemolyze red cells with the corresponding antigen. | View Page |