MASTER SOLUTION PACK
◉ What procedure involves the withdrawal of blood to obtain
plasma abd subsequent reinfusion of the RBCs into the donor?
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?
Answer: Total protein
◉ After donating a unit of whole blood, how long must a donor wait
before he/she is eligible for plateletpheresis?
Answer: 72 hours
◉ How long must a plasmapheresis donor wait before donating
whole blood?
Answer: 48 hours
◉ What is the separation of WBCs by reversible filtration or
centrifugation called?
Answer: Leukapheresis
,◉ Different genes that occupy a specific locus of a chromosome are
called:
Answer: Alleles
◉ Which description best describes an amorph?
Answer: Gene with no directly observable product
◉ What term is used to describe two identical alleles at a particular
locus?
Answer: Homozygous
◉ Which term best describes most blood group genes?
Answer: Codominant
◉ Which term best describes the gene inheritance of most blood
group systems?
Answer: Autosomal codominant
◉ Which one of the following stimulates the production of
antibodies?
Answer: Antigen
,◉ What term best describes antibodies that are produced after
exposure to foreign antigens that are stimulated by transfusion or
pregnancy?
Answer: Alloantibodies
◉ The initial response to a foreign antigen is known as the primary
response. The primary response usually takes how long to occur?
Answer: 2-6 months
◉ What term is used to describe the secondary response to the same
foreign antigen characterized by a rapid increase in antibody
synthesis?
Answer: Anamnestic response
◉ Which immunoglobulin class is produced by transfusion or
pregnancy?
Answer: IgG
◉ If a mother passes an antibody to her fetus through the placenta,
what type of immunity does the fetus have?
Answer: Naturally acquired passive immunity
◉ All of the following statements concerning complement are true
EXCEPT:
, Answer: It shows dosage effect with homozygous cells.
◉ All of the following statements concerning complement are true:
Answer: It is a group of at least nine plasma proteins, it causes
hemolysis of RBCs, and it is activated by both IgG and IgM
◉ Which blood group system was discovered first?
Answer: ABO
◉ Which gene codes for the enzyme L-fucosyltransferase?
Answer: H gene
◉ An individual inherited the following genes: Sese Hh AO. Which of
the following soluble antigens would be detectable in the saliva?
Answer: A and H
◉ Which system is composed of antigens found primarily in the
saliva and plasma?
Answer: Lewis
◉ Mixed-field reaction with anti-A reagent and a negative reaction
with anti-A1 lectin are observed. These results are most consistent
with which A subgroup?