Comp Exam Review UAMS MLS UPDATED ACTUAL Questions and CORRECT
Answers
ABY most associated with delayed Anti-Jk a
hemolytic transfusion reactions
ABY associated with Mycoplasma Anti-I
pneumonia
______ antibodies cause extravascular IgG
hemolysis from sequestration by spleen
Enzyme panel will not react with which Duffy antibodies (Fya or Fyb
antibodies?
When a unit of blood is entered, it has how 24 hours
long to be used?
-CPDA for 35 days
Component storage temps
-Adsol for 42 days
-Red cells
-1-6C
Component storage temps 1-6C for 35 days
-Whole blood with CPDA-1
Blood transfused to babies should be... Less than 7 days old
Irradiated RBCs must be used within what 28 days or expiration date (whichever is first)
time frame?
Component storage temps Freeze at -80C and store at -65C for 10 years
-Frozen & deglycerized RBC
Why is blood leukoreduced? Prevent febrile transfusion reactions
-Room temp (20-24C)
Component storage temps
-5 days with continuous agitation
-PLTs
transfuse within 4 hours of pooling
, Component storage temps -20-24C
-WBCs -24 hours
Component storage temps -Frozen at -18C for 1 year
-FFP -24 hours after thawing
Component storage temps -18C for one year
-Cryo AHF
Component storage temps 24 hours after thaw at 1-6C (RT for VIII)
-AHF or factor VIII concentrate
Give VIII and fibrinogen within______ hours 4
after pooling
T/F: RhIG at 28 weeks can cause the mom True
to have a low titer anti D
T/F: Blood from mom to child must be True
irradiated.
T/F: 37C crossmatch is needed to detect False (Room temp)
ABO errors.
Premature infants need transfusion mostly blood loss from lab tests
because of...
T/F: When phenotyping, use a positive False (heterozygously positive to show weak reactions)
control that is homozygous positive.
Rouleaux and cold auto will make the auto Distinguish by warming, looking under scope or saline replacement
control positive. How can this be
distinguished?
______ will react with polyspecific AHG Cold auto
and C3 monospecific AHG
Cryoprecipitate is used today mostly to Fibrinogen
replace what?
T/F: AB= patient can only get AB plasma (+ True
or =)
Intrauterine transfusion must have what Fresh, CMV=, irradiated and collected with CDPA
done to it?
What component is used when PT and PTT FFP
are prolonged?
T/F: Lewis antibodies react at RT and True
sometimes 37 and cause invitro hemolysis.
Sexual partner of IV drug user deferred One year
from donating for how long?
Patient has antibodies to: A ; B ; A,B and H; Bombay; test with anti-H lectin (will not react since bombay has no H antigens)
They foward and reverse type as an O.
What is suspected? How is it resolved?
Acquired B; patient is typically type A1 with GI issues and some bacteria alter the
A patient foward types as a B and RBC antigens
backtypes as an A. What is suspected?
How is it resolved? Resolve by autologous testing; patient's anti-B will not react with the acquired B
antigen on their RBCs
Answers
ABY most associated with delayed Anti-Jk a
hemolytic transfusion reactions
ABY associated with Mycoplasma Anti-I
pneumonia
______ antibodies cause extravascular IgG
hemolysis from sequestration by spleen
Enzyme panel will not react with which Duffy antibodies (Fya or Fyb
antibodies?
When a unit of blood is entered, it has how 24 hours
long to be used?
-CPDA for 35 days
Component storage temps
-Adsol for 42 days
-Red cells
-1-6C
Component storage temps 1-6C for 35 days
-Whole blood with CPDA-1
Blood transfused to babies should be... Less than 7 days old
Irradiated RBCs must be used within what 28 days or expiration date (whichever is first)
time frame?
Component storage temps Freeze at -80C and store at -65C for 10 years
-Frozen & deglycerized RBC
Why is blood leukoreduced? Prevent febrile transfusion reactions
-Room temp (20-24C)
Component storage temps
-5 days with continuous agitation
-PLTs
transfuse within 4 hours of pooling
, Component storage temps -20-24C
-WBCs -24 hours
Component storage temps -Frozen at -18C for 1 year
-FFP -24 hours after thawing
Component storage temps -18C for one year
-Cryo AHF
Component storage temps 24 hours after thaw at 1-6C (RT for VIII)
-AHF or factor VIII concentrate
Give VIII and fibrinogen within______ hours 4
after pooling
T/F: RhIG at 28 weeks can cause the mom True
to have a low titer anti D
T/F: Blood from mom to child must be True
irradiated.
T/F: 37C crossmatch is needed to detect False (Room temp)
ABO errors.
Premature infants need transfusion mostly blood loss from lab tests
because of...
T/F: When phenotyping, use a positive False (heterozygously positive to show weak reactions)
control that is homozygous positive.
Rouleaux and cold auto will make the auto Distinguish by warming, looking under scope or saline replacement
control positive. How can this be
distinguished?
______ will react with polyspecific AHG Cold auto
and C3 monospecific AHG
Cryoprecipitate is used today mostly to Fibrinogen
replace what?
T/F: AB= patient can only get AB plasma (+ True
or =)
Intrauterine transfusion must have what Fresh, CMV=, irradiated and collected with CDPA
done to it?
What component is used when PT and PTT FFP
are prolonged?
T/F: Lewis antibodies react at RT and True
sometimes 37 and cause invitro hemolysis.
Sexual partner of IV drug user deferred One year
from donating for how long?
Patient has antibodies to: A ; B ; A,B and H; Bombay; test with anti-H lectin (will not react since bombay has no H antigens)
They foward and reverse type as an O.
What is suspected? How is it resolved?
Acquired B; patient is typically type A1 with GI issues and some bacteria alter the
A patient foward types as a B and RBC antigens
backtypes as an A. What is suspected?
How is it resolved? Resolve by autologous testing; patient's anti-B will not react with the acquired B
antigen on their RBCs
