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Questions and Answers
What may result in weak expression of ABO antigens?
What may result in weak expression of ABO antigens?
How can excessive amounts of soluble A and/or B antigens in plasma affect blood testing?
How can excessive amounts of soluble A and/or B antigens in plasma affect blood testing?
What method can enhance the detection of weak ABO antigens?
What method can enhance the detection of weak ABO antigens?
What is mixed field agglutination often caused by?
What is mixed field agglutination often caused by?
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What should be done to avoid intravascular hemolysis during emergency transfusions?
What should be done to avoid intravascular hemolysis during emergency transfusions?
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What can cause mixed-field agglutination after a bone marrow transplantation?
What can cause mixed-field agglutination after a bone marrow transplantation?
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Which phenomenon occurs when two distinct populations of cells are present due to fertilization?
Which phenomenon occurs when two distinct populations of cells are present due to fertilization?
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What is one proposed cause of mixed-field agglutination in patients over their lifetime?
What is one proposed cause of mixed-field agglutination in patients over their lifetime?
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What is indicated when a patient has a hemolytic transfusion reaction with no found antibodies in their plasma?
What is indicated when a patient has a hemolytic transfusion reaction with no found antibodies in their plasma?
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What type of polyagglutination is typically acquired through bacterial infections?
What type of polyagglutination is typically acquired through bacterial infections?
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Which option best describes the origin of the acquired B antigen in some patients?
Which option best describes the origin of the acquired B antigen in some patients?
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How are polyagglutinating cells classified?
How are polyagglutinating cells classified?
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What is a characteristic of B(A) phenotype in blood group testing?
What is a characteristic of B(A) phenotype in blood group testing?
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What is the purpose of enzyme treatment in the context of ABO antibody testing?
What is the purpose of enzyme treatment in the context of ABO antibody testing?
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Which substance is NOT mentioned as an agent used for enzyme treatment?
Which substance is NOT mentioned as an agent used for enzyme treatment?
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Which factor can cause unexpected positive reactions in the forward group?
Which factor can cause unexpected positive reactions in the forward group?
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What should be done to resolve discrepancies caused by Wharton's jelly?
What should be done to resolve discrepancies caused by Wharton's jelly?
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What condition may cause red blood cells to agglutinate with all plasma due to exposure of hidden antigens?
What condition may cause red blood cells to agglutinate with all plasma due to exposure of hidden antigens?
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Which of the following substances can potentially cause rouleaux during ABO testing?
Which of the following substances can potentially cause rouleaux during ABO testing?
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Which of the following can lead to nonspecific agglutination if the testing is performed using unwashed cells?
Which of the following can lead to nonspecific agglutination if the testing is performed using unwashed cells?
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What is the role of cryptantigens in the context of unexpected reactions in blood typing?
What is the role of cryptantigens in the context of unexpected reactions in blood typing?
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What is the primary purpose of checking the patient's age when there is a missing reaction in the reverse group?
What is the primary purpose of checking the patient's age when there is a missing reaction in the reverse group?
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Which condition is NOT mentioned as a reason for decreased ABO antibody production?
Which condition is NOT mentioned as a reason for decreased ABO antibody production?
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What action is recommended if a patient has recently undergone therapeutic plasma exchange therapy?
What action is recommended if a patient has recently undergone therapeutic plasma exchange therapy?
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In the context of resolving ABO discrepancies, what temperature is suggested for incubating the reverse group to potentially enhance antibody detection?
In the context of resolving ABO discrepancies, what temperature is suggested for incubating the reverse group to potentially enhance antibody detection?
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When might the forward grouping be deemed sufficient for determining ABO blood type?
When might the forward grouping be deemed sufficient for determining ABO blood type?
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Which group of patients is likely to exhibit decreased antibody concentration due to aging?
Which group of patients is likely to exhibit decreased antibody concentration due to aging?
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What is one of the methods to enhance a weak reaction in tube testing for ABO grouping?
What is one of the methods to enhance a weak reaction in tube testing for ABO grouping?
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Which of the following statements about IgM antibodies is correct?
Which of the following statements about IgM antibodies is correct?
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Which cold autoantibodies can interfere with ABO testing?
Which cold autoantibodies can interfere with ABO testing?
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What technique can help neutralize cold-reactive antibodies during ABO testing?
What technique can help neutralize cold-reactive antibodies during ABO testing?
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What is the purpose of using reverse grouping when performing ABO tests?
What is the purpose of using reverse grouping when performing ABO tests?
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Which condition may result in rouleaux formation during blood testing?
Which condition may result in rouleaux formation during blood testing?
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Which technique can be used to distinguish true agglutination from rouleaux?
Which technique can be used to distinguish true agglutination from rouleaux?
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What should a laboratory do first when a discrepancy is discovered in the testing results?
What should a laboratory do first when a discrepancy is discovered in the testing results?
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What can be a sign of contamination in a reagent?
What can be a sign of contamination in a reagent?
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Which of the following is NOT a recommended practice when handling an ABO discrepancy?
Which of the following is NOT a recommended practice when handling an ABO discrepancy?
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What might a decrease in the strength of a reaction over time suggest?
What might a decrease in the strength of a reaction over time suggest?
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In the case of an ABO discrepancy between current and historical results, what might this indicate?
In the case of an ABO discrepancy between current and historical results, what might this indicate?
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