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Details

Bb- detection of unexpected blood group antibodies
test 1
16
Health Care
Undergraduate 4
06/14/2009

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Cards

Term
When is an antibody considered clinically significant?
Definition
If it reacts at 37 C, AHG, or causes hemolysis, or has been associated with HDN
Term
What two situations could cause development of blood group antibodies?
Definition
pregnancy or transfusion
Term
What ABO type are cells used to screen for antibodies?
Definition
type O
Term
What is the next step if antibody screen is positive?
Definition
Antibody identification panel.
Term
Does antibody screening detect all antibodies?
Definition
No.
Term
If an antibody only reacts at immediate spin, what is its probable class?
Definition
IgM.
Term
If an antibody reacts at 37 and AHG, what is suspected?
Definition
Rh antibody
Term
If an antibody only reacts at AHG, what is suspected?
Definition
IgG
Term
What is the autocontrol for?
Definition
To check for autoimmune antibody or transfusion-reaction andtibody.
Term
What is a crossmatch?
Definition
A mixture of patient serum and donor red cells before transfusion to check for antibody reactions.
Term
What does the DAT check for?
Definition
antibody attached to red cells in vivo
Term
If a reaction occurs at 37 C or AHG, is it clinically significant?
Definition
Yes.
Term
If a reaction occurs at room temperature only, is it clinically significant?
Definition
no.
Term
What could cause variable strength reaction?
Definition
dosage or multiple antibodies
Term
Are hemolytic antibodies considered clinically significant?
Definition
Yes.
Term
What antibodies are enhanced by enzyme treatment?
Definition
Rh, Kidd, Lewis, P1, I and i.
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