Advanced ABO Practice Test Questions and Graded A+ Answers
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Module
ABO Advanced
Institution
ABO Advanced
Advanced ABO Practice Test Questions and Graded A+ Answers
Forward Type - ANS Looking for unknown antigen on RBC, use known antibody (Antisera), Agglutination indicates the presence of antigen, determines the ABO group
Reverse Type - ANS Use Known antigen (reagent red cells) to detect--Un...
, Forward Type - ANS Looking for unknown antigen on RBC, use known antibody
(Antisera), Agglutination indicates the presence of antigen, determines the ABO group
Reverse Type - ANS Use Known antigen (reagent red cells) to detect--Unknown
antibody in plasma, agglutination indicates the presence of antibody, confirms the ABO
group (most of the time, ~2% discrepancy)
ABO subgroups: "A" main subgroups - ANS Type "A" may be broken down into 2 main
subgroups: A1 and A2
A
What % of A people have an unexpected reverse reaction that doesn't match forward
VI
reaction - ANS 1% of the 40% that are type A
A1 phenotype has which antigens - ANS A1 and A (H)
TU
A2 phenotype has which antigens - ANS A only (NO such thing as A2 antigen) (H)
Quantitative A1 v. A2: A1 - ANS A1 has higher concentration of A (in addition to
having A1 antigen)
IS
Quantitative: A1 v A2: A2 - ANS A2 has fewer A antigens and Higher concentration of
H
M
Qualitative: A1 v A2 - ANS Linear (A) vs. branched (A1) forms of the same antigen
O
Group AB can also be subdivided into different subgroups - ANS A1B...A1, A, B, (H)
antigens. A2B.....A and B, (H) antigens
A
Order of ABO with decreasing amount of H - ANS O>A2>B>A2B>A1>A1B (usually
N
still have enough for 3+/4+ rxn.)
JP
A1 phenotype possible genotype - ANS A1/A1, A1/O, A1/A2
A2 phenotype possible genotype - ANS A2/A2, A2/O
B phenotype possible genotype - ANS B/B, B/O
A1B phenotype possible genotype - ANS A1/B
A2B phenotype possible genotype - ANS A2/B
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