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immunohematology
clinical lab
74
Other
Not Applicable
06/18/2007

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Term
________________contain many proteins and glycolipids capable of evoking antibody formation
Definition
Red cell membranes
Term
ABO blood group antigens are formed when transferases add specific sugars to the
Definition
ends of carbohydrate chains called oligosaccharides
Term
Genes at three separate loci control the occurrence and location of
Definition
the ABO antigens
Term
There are between ______and ________ antigens on an RBC
Definition
50 and 100
Term
Antigens are ___________and ___________, that produce an antibody response.
Definition
Proteins and Glycolipids
Term
___________determined about 6 mo before antibody develops
Definition
blood type
Term
links of different sugars determine_____________.
Definition
blood type
Term
group O has the ______antigen
Definition
H
Term
Group A has a different sugar added to the ___________of the chain
Definition
top
Term
Type ________has a different sugar on the terminal end
Definition
B
Term
cis-AB has a, b, and _________antigens
Definition
o
Term
type A has ________antibody
Definition
anti-B
Term
type B has ____________antibody
Definition
Anti-A
Term
Type AB has what antibodies?
Definition
none
Term
Type _________has Anti-A and Anti-B antibodies
Definition
O
Term
Bombay phenotype is recessive for _______antigen, but they don't express it.
Definition
H
Term
The ultimate blood doner is____________.Not the universal blood donor.
Definition
O (sub h)
Term
80% of people are secretors, they secrete ____________in various body fluids.
Definition
antigens
Term
A subgroup of an antigen has a variation of ____________ in chain. The initial backbone is different.
Definition
sugar
Term
The A (sub 2) antigen has a _________
linkage
Definition
1-4
Term
The A(sub 1) antigen has a _________ linkage between galactose and
N-acetylglucosamine
Definition
1-3
Term
A2 antigen may produce a_______antibody
Definition
A1
Term
One inherits a d,c, or e antigen from______________.
Definition
parents
Term
About 80% of the population, have a D antigen, this means they are________
Definition
Rh positive
Term
Do we worry about women or men developing an anti-D antigen
Definition
Women
Term
Rh antibodies develop only after_________________
Definition
immune sensitization or exposure
Term
The anti- D antigen will attack an newborns__________, resulting in Hemolytic disease of the Newborn.
Definition
RBC's
Term
Rh antibodies, when produced are primarily __________and readily cross the placenta
Definition
IgG
Term
33% of caucasion have the __________ Rh genotype.They are Rh positive.
Definition
Dd
Term
what is looked at when blood typing
Definition
+Agglutination
Term
_____screens for unexpected antibodies
Definition
IAT
Term
transfusion or any___________can cause antibodies to form
Definition
preganancies
Term
what type of patients should a type and screen be done for
Definition
surgical and obstetric
Term
In surgical patients, whether or not to have blood typed and crossed depends on __________________________.
Definition
the type of procedure and the anticipated blood loss
Term
a patient may have reaction to donor blood either ______---or_____________
Definition
immediately or later
Term
when transfusing blood, always match_________first
Definition
type
Term
before exposing a patient to the anti-D antigen, what should you ask yourself/
Definition
Is it a female of childbearing age?
Term
Plasma is opposite of RBCs, ____does not have anti-A or anti-B,
O plasma has _____and _________.
Definition
AB plasma ;

anti-A and anti-B
Term
Rh is NOT a factor when transfusing which blood product?
Definition
plasma
Term
Liver, spleen, kidneys will react first if give ________________.
Definition
incompatible blood
Term
Anti Human Globulin (AHG) is looking
Definition
antibody on the surface of RBC
Term
complement can cause cell_--
Definition
lysis
Term
DAT is used to detect_____________
Definition
coating of the red cells by antibodies In vivo.
Term
AHG should bind to antibodies if they are there and have ___________
Patient will be antigen + for that particular antibody
Definition
+agglutination
Term
If a reaction from blood is suspected, monitor______________ in patient
Definition
BP, Resp, HR, Temp
Term
blood can be ___________to remove anything excess
Definition
washed
Term
The more ________ present, the more difficult to find a donor
Definition
antibodies
Term
If Pt serum reacted with donated RBCs-look for ________, then identify the antigen
Definition
+ agglutination
Term
____-blood is rarely given
Definition
Whole
Term
packed red cell are mostly given when there is a need to get __________ in
Definition
oxygen
Term
platelet concentrates are used for__________
Definition
clotting
Term
_____________ Used for dilutional coagulopathies, when RBCs are given frequently.
Should give 4:1 ratio.
Definition
FFP-Fresh Frozen Plasma
Term
FFP contains
Definition
all coagulation factors and other proteins
Term
Cryoprecipitaed Antihemophylic Factor (CRYO)
Definition
Freeze plasma, factor 8 will precipitate out-given for Hemophilia A
Term
HLA
Definition
human leukocyte antigens
Term
GVHD
Definition
graft V. host disease
Term
Gamma irradiation___________white cells
Definition
inactivates
Term
Acute Hemolytic Transfusion Reaction (HTR) usua due to _____________. First clue-pain at infusion site
Definition
ABO incompatibility (unit labeled wrong, read wrong, etc)
Term
Febrile non-hemolytic reaction does not affect_____________. First symptom is____________.
Definition
RBCs;
fever
Term
uticarial(skin) may be due to _______________
Definition
may be due to plasma proteins
Term
Anaphylactic reactions are very rate with blood products and usually involve__________
Definition
anti-IgA
Term
_____________ is Not an acute reaction and may
Take days or weeks to develop
Definition
Delayed hemolytic Transfusion reaction
Term
2 types of HTR
Definition
anamnestic
primary
Term
how long does primary HTR take to develop? characterized by what?
Definition
may take weeks;

low hemoglobin and Malaise, fever, RBC in urine
Term
Why would a previously immunized individual have an anamnestic response?
Definition
The renewed antigenic stimulation in a person already primed by previous antigenic exposure results in recrudescence of antibody to levels that can cause hemolysis
Term
to prevent GVHD, you could use
Definition
luekocyte reduced graft
Term
Posttransfusion Purpura is rare and develops when
Definition
a multiparous femaledevelops antibodies to platelets
Term
in case of reaction, the following should be done:
Definition
Document temp, HR, etc.!
Check blood, labels, etc. to make sure wrong unit, type!
Everything should be sent back-tubing and all!
Term
Erythroblastosis
Definition
Rh neg Moms, having a Rh+ baby, Mom makes antibody that’s attacking baby.
Oxygen in blood decreases, HR increases.
Term
Ectopic pregnancy-O neg Mom with Anti-D . what should be advised
Definition
shouldn't get pregnant again
Term
Rogan (Anti_D) given at week 28 – Why at this point in time?
Definition
half life will carry thru to end of term
Term
amount of bilirubin that is detrimental to baby?
Definition
22 mg/dm
Term
Why is unconjugated bilirubin insoluble?
Definition
(insoluble-bound by albumin, cannont be excreted and accumulates in tissue)
Term
What does Rhogam do when used for HDN?
Definition
Gives passive immunity before mom’s system can invoke an immune response
Given for all Rh negative women
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