AAB MT STUDY GUIDE Questions with Correct Answers (Grade
A+)
Question 1: What procedure involves the withdrawal of blood to obtain plasma abd subsequent
reinfusion of the RBCs into the donor?
Answer: Plasmapheresis
Question 2: 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
Question 3: After donating a unit of whole blood, how long must a donor wait before he/she is eligible
for plateletpheresis?
Answer: 72 hours
Question 4: How long must a plasmapheresis donor wait before donating whole blood?
Answer: 48 hours
Question 5: What is the separation of WBCs by reversible filtration or centrifugation called?
Answer: Leukapheresis
Question 6: Different genes that occupy a specific locus of a chromosome are called:
Answer: Alleles
Question 7: Which description best describes an amorph?
Answer: Gene with no directly observable product
Question 8: What term is used to describe two identical alleles at a particular locus?
Answer: Homozygous
Question 9: Which term best describes most blood group genes?
Answer: Codominant
Question 10: Which term best describes the gene inheritance of most blood group systems?
Answer: Autosomal codominant
Page 1
,Question 11: Which one of the following stimulates the production of antibodies?
Answer: Antigen
Question 12: What term best describes antibodies that are produced after exposure to foreign antigens
that are stimulated by transfusion or pregnancy?
Answer: Alloantibodies
Question 13: 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
Question 14: 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
Question 15: Which immunoglobulin class is produced by transfusion or pregnancy?
Answer: IgG
Question 16: 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
Question 17: All of the following statements concerning complement are true EXCEPT:
Answer: It shows dosage effect with homozygous cells.
Question 18: 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
Question 19: Which blood group system was discovered first?
Answer: ABO
Question 20: Which gene codes for the enzyme L-fucosyltransferase?
Answer: H gene
Page 2
, Question 21: 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
Question 22: Which system is composed of antigens found primarily in the saliva and plasma?
Answer: Lewis
Question 23: 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?
Answer: A3
Question 24: Which one of the following antibodies will NOT be detected in the serum of a Bombay
genotype?
Answer: anti-Oh
Question 25: Naturally occurring antibodies are found in which blood group system?
Answer: ABO
Question 26: Immune antibodies are stimulated by all of the following EXCEPT which one?
Answer: Immune system reacting to the environment
Question 27: RBCs of which blood group react most strongly with anti-H?
Answer: O
Question 28: What is the frequency of Group A individuals in the US population?
Answer: 41%
Question 29: Which statement is true concerning group B individuals?
Answer: Anti-A in their serum
Question 30: What is the standard acceptable color for anti-A grouping serum?
Answer: Blue
Question 31: What is the color of the dye added to the commercially prepared anti-B blood grouping
serum?
Answer: Yellow
Page 3
A+)
Question 1: What procedure involves the withdrawal of blood to obtain plasma abd subsequent
reinfusion of the RBCs into the donor?
Answer: Plasmapheresis
Question 2: 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
Question 3: After donating a unit of whole blood, how long must a donor wait before he/she is eligible
for plateletpheresis?
Answer: 72 hours
Question 4: How long must a plasmapheresis donor wait before donating whole blood?
Answer: 48 hours
Question 5: What is the separation of WBCs by reversible filtration or centrifugation called?
Answer: Leukapheresis
Question 6: Different genes that occupy a specific locus of a chromosome are called:
Answer: Alleles
Question 7: Which description best describes an amorph?
Answer: Gene with no directly observable product
Question 8: What term is used to describe two identical alleles at a particular locus?
Answer: Homozygous
Question 9: Which term best describes most blood group genes?
Answer: Codominant
Question 10: Which term best describes the gene inheritance of most blood group systems?
Answer: Autosomal codominant
Page 1
,Question 11: Which one of the following stimulates the production of antibodies?
Answer: Antigen
Question 12: What term best describes antibodies that are produced after exposure to foreign antigens
that are stimulated by transfusion or pregnancy?
Answer: Alloantibodies
Question 13: 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
Question 14: 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
Question 15: Which immunoglobulin class is produced by transfusion or pregnancy?
Answer: IgG
Question 16: 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
Question 17: All of the following statements concerning complement are true EXCEPT:
Answer: It shows dosage effect with homozygous cells.
Question 18: 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
Question 19: Which blood group system was discovered first?
Answer: ABO
Question 20: Which gene codes for the enzyme L-fucosyltransferase?
Answer: H gene
Page 2
, Question 21: 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
Question 22: Which system is composed of antigens found primarily in the saliva and plasma?
Answer: Lewis
Question 23: 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?
Answer: A3
Question 24: Which one of the following antibodies will NOT be detected in the serum of a Bombay
genotype?
Answer: anti-Oh
Question 25: Naturally occurring antibodies are found in which blood group system?
Answer: ABO
Question 26: Immune antibodies are stimulated by all of the following EXCEPT which one?
Answer: Immune system reacting to the environment
Question 27: RBCs of which blood group react most strongly with anti-H?
Answer: O
Question 28: What is the frequency of Group A individuals in the US population?
Answer: 41%
Question 29: Which statement is true concerning group B individuals?
Answer: Anti-A in their serum
Question 30: What is the standard acceptable color for anti-A grouping serum?
Answer: Blue
Question 31: What is the color of the dye added to the commercially prepared anti-B blood grouping
serum?
Answer: Yellow
Page 3
