Question 1

When a patient's red blood cells combine with anti-A typing serum to produce a positive result,this reaction is known as:

Accepted Answer

A)   passive agglutination
B)   reverse passive agglutination
C)   hemagglutination
D)   flocculationE) A) and D)
F) C) and D)

Question 2

If a Coombs' test is positive,which of the following is true?

Accepted Answer

A)   Antibody has coated patient red blood cells in vitro.
B)   Antigen is reacting with patient antibody.
C)   Antibody has coated patient red blood cells in vivo.
D)   Antigen has coated patient red blood cells in vivo.E) A) and C)
F) C) and D)

Question 3

A serological reaction is set up in which the antigen is bound to a large carrier,the antibody is soluble,and they bind and form an insoluble complex that is detected macroscopically.What type of assay is described?

Accepted Answer

A)   precipitation
B)   agglutination
C)   flocculation
D)   neutralizationE) C) and D)
F) B) and D)

Question 4

Which antibody class may require the use of an enhancement technique to visualize the reaction?

Accepted Answer

A)   IgM
B)   IgG
C)   IgA
D)   IgEE) C) and D)
F) B) and D) B

Question 5

What would be the best test to determine evidence of hemolytic disease of the newborn?

Accepted Answer

A)   direct antiglobulin testing
B)   passive agglutination
C)   coagglutination testing
D)   indirect antiglobulin testingE) A) and D)
F) B) and C) D

Question 6

When carrier particles are coated with an antigen that is not normally found on them,this is known as:

Accepted Answer

A)   direct agglutination
B)   passive agglutination
C)   reverse passive agglutination
D)   hemagglutinationE) A) and B)
F) A) and D)

Question 7

In performing blood typing using the tube method,if the red cell button is not resuspended properly,what are the most likely results?

Accepted Answer

A)   false-positive
B)   false-negative
C)   doesn't affect the results
D)   makes the reaction weakerE) A) and D)
F) B) and C)

Question 8

The process by which particulate antigens such as cells aggregate to form larger complexes when specific antibody is present is called:

Accepted Answer

A)   sensitization
B)   precipitation
C)   agglutination
D)   flocculationE) A) and B)
F) B) and C)

Question 9

A serological test that uses red blood cells coated with exogenous antigens such as bacterial polysaccharides as a method to detect patient antibodies against that exogenous antigen is called:

Accepted Answer

A)   latex agglutination
B)   hemagglutination
C)   neutralization
D)   complement fixationE) A) and B)
F) None of the above

Question 10

Coombs' reagent is used for what purpose?

Accepted Answer

A)   to link small antigens on patient red cells
B)   to enhance agglutination with IgG coated red blood cells
C)   to enhance agglutination with IgM coated red blood cells
D)   to cause a precipitation reaction with small amounts of antibodyE) None of the above
F) B) and C) B

Question 11

Which of the following would enhance an agglutination reaction?

Accepted Answer

A)   polyethylene glycol (PEG) 
B)   high ionic strength saline
C)   running the reaction at 4C
D)   running the reaction at a high pHE) A) and B)
F) B) and C)

Exam 9: Agglutination

When a patient's red blood cells combine with anti-A typing serum to produce a positive result,this reaction is known as:

Correct Answer
verified

If a Coombs' test is positive,which of the following is true?

Correct Answer
verified

A serological reaction is set up in which the antigen is bound to a large carrier,the antibody is soluble,and they bind and form an insoluble complex that is detected macroscopically.What type of assay is described?

Correct Answer
verified

Which antibody class may require the use of an enhancement technique to visualize the reaction?

Correct Answer
verified
B

What would be the best test to determine evidence of hemolytic disease of the newborn?

Correct Answer
verified
D

When carrier particles are coated with an antigen that is not normally found on them,this is known as:

Correct Answer
verified

In performing blood typing using the tube method,if the red cell button is not resuspended properly,what are the most likely results?

Correct Answer
verified

The process by which particulate antigens such as cells aggregate to form larger complexes when specific antibody is present is called:

Correct Answer
verified

A serological test that uses red blood cells coated with exogenous antigens such as bacterial polysaccharides as a method to detect patient antibodies against that exogenous antigen is called:

Correct Answer
verified

Coombs' reagent is used for what purpose?

Correct Answer
verified
B

Which of the following would enhance an agglutination reaction?

Correct Answer
verified

Exam 9: Agglutination

When a patient's red blood cells combine with anti-A typing serum to produce a positive result,this reaction is known as:

Correct AnswerverifiedShow Answer

If a Coombs' test is positive,which of the following is true?

Correct AnswerverifiedShow Answer

A serological reaction is set up in which the antigen is bound to a large carrier,the antibody is soluble,and they bind and form an insoluble complex that is detected macroscopically.What type of assay is described?

Correct AnswerverifiedShow Answer

Which antibody class may require the use of an enhancement technique to visualize the reaction?

Correct AnswerverifiedB

What would be the best test to determine evidence of hemolytic disease of the newborn?

Correct AnswerverifiedD

When carrier particles are coated with an antigen that is not normally found on them,this is known as:

Correct AnswerverifiedShow Answer

In performing blood typing using the tube method,if the red cell button is not resuspended properly,what are the most likely results?

Correct AnswerverifiedShow Answer

The process by which particulate antigens such as cells aggregate to form larger complexes when specific antibody is present is called:

Correct AnswerverifiedShow Answer

A serological test that uses red blood cells coated with exogenous antigens such as bacterial polysaccharides as a method to detect patient antibodies against that exogenous antigen is called:

Correct AnswerverifiedShow Answer

Coombs' reagent is used for what purpose?

Correct AnswerverifiedB

Which of the following would enhance an agglutination reaction?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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B

Correct Answer
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D

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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B

Correct Answer
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