transfusion W8 Flashcards
what is an antigen
toxin or foreign body that induces an immune response
what is an antibody
a protein produced in response to an antigen
what is the antigen for A group
A
what is the antigen for b group
B
what is the antigen for O group
none - unchanged
what is the antigen of A and B group
AB
what is the most common blood group for black population
B
what is the common blood groups for UK
A and O
what does H transferase add
a single terminal carbohydrate to the precursor
what does A transferase add
a N-acetyle-D-galactosamine to H
what does B transferase add
D-galactose to H
why is the ABO system importune t
result of ABO incompatibility = fatal transfusion reactions caused by technical errors
what is Landsteiners law
Healthy adults lacking the A or B antigen on their red cells will have the corresponding antibody present in their serum.
what are O antibodies in the serum
anti a
anti B
anti A,B
what are a’s antibody in serum
anti B
