Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
22 Cards in this Set
- Front
- Back
|
What is the ratio of ppl making anti-K if exposed to K antigen?
|
1 in 10
|
|
|
What are some examples of sulfhydryl reagents?
|
AET
2ME DTT |
|
|
What does sulfhydryl reagent do to K antigens?
|
Destroy
|
|
|
People with which phenotype are resisitant to some forms of Malaria?
|
Fy (a-b-)
|
|
|
Why are ppl with a certain Duffy phenotype resistant to Malaria?
|
because that Duffy ag is a receptor site for the merozoite
|
|
|
Ppl who are negative for Fya and Fyb are also negative to?
|
Fy3
|
|
|
Which antibodies show dosage?
|
Kidd, M, N, U, S, s
|
|
|
Which antibodies are very weak and difficult to detect, but are very important?
|
Kidd
|
|
|
Higher frequency.
Lua or Lub? |
Lub
|
|
|
What are mixed field agglutination and in which group does it occur?
|
Agglutination with 2 population of cells
Lutheran |
|
|
Lewis antigen are composed of? by?
|
water-soluable glycoproteins
tissue cells |
|
|
Which antigens are not part of the red cell membrane and not present at birth?
|
Lewis
|
|
|
What is the most common Lewis phenotype?
|
Le(a-b+)
|
|
|
Comment on the development of Ii ags.
|
- i found on cord cells
- i will change to I in 2 years |
|
|
What technique is used to stop anti-I reactions?
|
- prewarm plasma and red cells separately and test at 37oC
- use IAT - wash cells by hand with warm saline |
|
|
What happens when there is a reaction to Anti-I?
|
Cold hemagglutinin disease
|
|
|
higher frequency.
P1 or P2? |
P1
|
|
|
Auto-anti-P causes what disease?
|
Paroxysmal cold hemablobinuria (autoimmune hemolytic anemia)
|
|
|
What is another name for Auto-Anti-P?
|
Donath-Landsteiner antibody
|
|
|
What is special about the reaction of auto-anti-P?
|
binds to P positive cells at low temp and causes hemolysis when cells are warmed to 37oC
|
|
|
MNS system, what are the main ags?
|
M, N, S, s, U
|
|
|
U antigen is inherited when ? and ? is inherited?
|
S and s
|
