AAB MT IMMUNOHEMATOLOGY WITH
COMPLETE QUESTIONS AND ACCURATE
ANSWERS
What is the shelf life of cryoprecipitated antihemolytic factor when
stored at -18 degrees C or lower? Correct Answer 1 year
What is the shelf life of FFP that is stored at -18 degrees C or
lower? Correct Answer 1 year
What is the optimum temperature for thawing FFP? Correct
Answer 30-37 degrees C
What is the shelf life of platelet concentrates? Correct Answer 5
days at 20-24 degrees C with constant agitation
If the hermetic seal on a unit of packed RBCs has been broken,
how soon must the product be used if stored in the blood bank
refrigerator? Correct Answer 24 hours
Which biochemical change does NOT occur in stored blood?
Correct Answer Plasma K+ decreases
Which biochemical changes occur in stored blood? Correct
Answer Plasma pH decreases, plasma Na+ decreases, and 2,3-
DPG decreases
Which one of the following is NOT a labeling requirement of
specimens for crossmatching? Correct Answer Ordering
physician
The following are labeling requirements of specimens for
crossmatching? Correct Answer Collection date, patient's name,
hospital number
,All of the following statements concerning autologous transfusions
are true EXCEPT which one? Correct Answer There are no
donor blood requirements for them
All of the following statements concerning autologous transfusions
are true: Correct Answer They prevent alloimmunization, they are
the safest possible transfusions, and they eliminate the risk of
transfusion-transmitted infections.
In which autologous procedure is blood drawn and stored before
the anticipated elective surgery? Correct Answer Preoperative
collection
For autologous blood donations, blood should not be drawn from
the donor-patient within how many hours before the anticipated
operation or transfusion? Correct Answer 72 hours
Which statement concerning the criteria for presurgical
autologous donations is true? Correct Answer Donor hemoglobin
must be at least 11.0 g/dL
Which of the following pretransfusion tests must be determined
for an autologous transfusion recipient? Correct Answer ABO/Rh
testing
What procedure involves the withdrawal of blood to obtain plasma
abd subsequent reinfusion of the RBCs into the donor? Correct
Answer Plasmapheresis
Collection of plasma by pheresis more often than once every 8
weeks necessitates that which analyte(s) is(are) monitored at 4-
month intervals? Correct Answer Total protein
, After donating a unit of whole blood, how long must a donor wait
before he/she is eligible for plateletpheresis? Correct Answer 72
hours
How long must a plasmapheresis donor wait before donating
whole blood? Correct Answer 48 hours
What is the separation of WBCs by reversible filtration or
centrifugation called? Correct Answer Leukapheresis
Different genes that occupy a specific locus of a chromosome are
called: Correct Answer Alleles
Which description best describes an amorph? Correct Answer
Gene with no directly observable product
What term is used to describe two identical alleles at a particular
locus? Correct Answer Homozygous
Which term best describes most blood group genes? Correct
Answer Codominant
Which term best describes the gene inheritance of most blood
group systems? Correct Answer Autosomal codominant
Which one of the following stimulates the production of
antibodies? Correct Answer Antigen
What term best describes antibodies that are produced after
exposure to foreign antigens that are stimulated by transfusion or
pregnancy? Correct Answer Alloantibodies
The initial response to a foreign antigen is known as the primary
response. The primary response usually takes how long to occur?
Correct Answer 2-6 months
COMPLETE QUESTIONS AND ACCURATE
ANSWERS
What is the shelf life of cryoprecipitated antihemolytic factor when
stored at -18 degrees C or lower? Correct Answer 1 year
What is the shelf life of FFP that is stored at -18 degrees C or
lower? Correct Answer 1 year
What is the optimum temperature for thawing FFP? Correct
Answer 30-37 degrees C
What is the shelf life of platelet concentrates? Correct Answer 5
days at 20-24 degrees C with constant agitation
If the hermetic seal on a unit of packed RBCs has been broken,
how soon must the product be used if stored in the blood bank
refrigerator? Correct Answer 24 hours
Which biochemical change does NOT occur in stored blood?
Correct Answer Plasma K+ decreases
Which biochemical changes occur in stored blood? Correct
Answer Plasma pH decreases, plasma Na+ decreases, and 2,3-
DPG decreases
Which one of the following is NOT a labeling requirement of
specimens for crossmatching? Correct Answer Ordering
physician
The following are labeling requirements of specimens for
crossmatching? Correct Answer Collection date, patient's name,
hospital number
,All of the following statements concerning autologous transfusions
are true EXCEPT which one? Correct Answer There are no
donor blood requirements for them
All of the following statements concerning autologous transfusions
are true: Correct Answer They prevent alloimmunization, they are
the safest possible transfusions, and they eliminate the risk of
transfusion-transmitted infections.
In which autologous procedure is blood drawn and stored before
the anticipated elective surgery? Correct Answer Preoperative
collection
For autologous blood donations, blood should not be drawn from
the donor-patient within how many hours before the anticipated
operation or transfusion? Correct Answer 72 hours
Which statement concerning the criteria for presurgical
autologous donations is true? Correct Answer Donor hemoglobin
must be at least 11.0 g/dL
Which of the following pretransfusion tests must be determined
for an autologous transfusion recipient? Correct Answer ABO/Rh
testing
What procedure involves the withdrawal of blood to obtain plasma
abd subsequent reinfusion of the RBCs into the donor? Correct
Answer Plasmapheresis
Collection of plasma by pheresis more often than once every 8
weeks necessitates that which analyte(s) is(are) monitored at 4-
month intervals? Correct Answer Total protein
, After donating a unit of whole blood, how long must a donor wait
before he/she is eligible for plateletpheresis? Correct Answer 72
hours
How long must a plasmapheresis donor wait before donating
whole blood? Correct Answer 48 hours
What is the separation of WBCs by reversible filtration or
centrifugation called? Correct Answer Leukapheresis
Different genes that occupy a specific locus of a chromosome are
called: Correct Answer Alleles
Which description best describes an amorph? Correct Answer
Gene with no directly observable product
What term is used to describe two identical alleles at a particular
locus? Correct Answer Homozygous
Which term best describes most blood group genes? Correct
Answer Codominant
Which term best describes the gene inheritance of most blood
group systems? Correct Answer Autosomal codominant
Which one of the following stimulates the production of
antibodies? Correct Answer Antigen
What term best describes antibodies that are produced after
exposure to foreign antigens that are stimulated by transfusion or
pregnancy? Correct Answer Alloantibodies
The initial response to a foreign antigen is known as the primary
response. The primary response usually takes how long to occur?
Correct Answer 2-6 months
