Additional blood group systems and antigens

Question 1

All of the following is consistent with Xga antibody characteristics:

Answer 1

reactive at IAT phase

Question 2

The Wright blood group antigens belong to which blood group system?

Answer 2

DI

Question 3

Which statement is true concerning the Cartwright antigens?

Answer 3

Cord blood tests as YTa negative

Question 4

Which antigen is useful as a genetic marker for Mongolian derivation and anthropologic studies?

Answer 4

Dia

Question 5

The rarely encountered Scianna antibodies react in which phase of the antibody screen?

Answer 5

IgG

Question 6

Which of the following is true concerning Colton antibodies?

Answer 6

Stimulated by red cell exposure

Question 7

Which antigen is expressed on C4B complement fragments?

Answer 7

Cha

Question 8

How does complement aid in the identification of alloantibodies masked by anti-Cha?

Answer 8

C4d in plasma will absorb anti-Cha

Question 9

Bg antibodies are primarily directed toward antigenic determinants present on:

Answer 9

White blood cells

Question 10

Absorption with commercial human platelet concentrate is effective for removing which antibodies?

Answer 10

Anti-Bg

Question 11

Antigens in the CH/RG blood group systems are described as:

Answer 11

Absorbed onto the red cell membrane

Question 12

What blood group antigens are involved in the regulation of complement because they are located on decoy accelerating factor?

Answer 12

CROM