Question 1

Which technique used to diagnose a disease is also called the double diffusion method?

Accepted Answer

A)   Ouchterlony test
B)   VDRL test
C)   immunoelectrophoresis
D)   Western Blot
E)   ELISAF) A) and B)
G) A) and C)

Question 2

Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?

Accepted Answer

A)   Ouchterlony double diffusion
B)   Western Blot
C)   immunelectrophoresis
D)   radioimmunoassay RI
A)  
E)   the Quellung testF) A) and E)
G) B) and D)

Question 3

Tests that take place in the lab, such as in a test tube or Petri-dish, outside of a living host, are referred to as _______________ whereas tests that take place in a living host, such as in a patient, are described as ______________.

Accepted Answer

A)   In loco; In vitro
B)   In vitro; In loco
C)   In vitro; In vivo
D)   In loco; In vivoE) B) and C)
F) None of the above

Question 4

Serological testing always involves reactions between specific antibody and antigen.

Accepted Answer

A) True 
 B)False

Question 5

Describe three possible sampling sites and methods of collection for clinical laboratories.

Accepted Answer

1. Blood Collection from a Vein: One com...

Question 6

Describe the indirect ELISA test that is used as a screening test for HIV AIDS) and include the following: a) sequence of procedures, b) reagents used, and c) detection and interpretation of a positive test.

Accepted Answer

The answer of Describe the indirect ELISA test that is...

Question 7

In a __________, antigens or antibodies are labeled with radioactive isotopes and traced.

Accepted Answer

The answer of In a __________, antigens or antibodies are...

Question 8

In indirect fluorescent testing, fluorescent _____ are used to react with the Fc region of another, specific, serum antibody.

Accepted Answer

The answer of In indirect fluorescent testing, fluorescent _____ are...

Question 9

Which test is used to measure the IgE present in allergic patients?

Accepted Answer

A)   fluorescent antibody tests
B)   Rapid Pla Reagin RPR)  test
C)   Weil-Felix reaction
D)   RIST
E)   ELISAF) A) and E)
G) A) and B)

Question 10

The more a sample can be diluted and yet still react with antigen, the ______ the concentration of antibodies in that sample and the _______ is its titer.

Accepted Answer

A)   lower; lower
B)   higher; lower
C)   lower; higher
D)   higher; higherE) A) and B)
F) A) and C)

Question 11

ELISA tests use a fluorescent dye as a label to trace antigen-antibody reactions.

Accepted Answer

A) True 
 B)False

Question 12

Pulsed-field gel electrophoresis PFGE)  is often used to determine whether bacterial isolates from different cases of food-borne illness are the same and can be traced to the same source. This is an example of

Accepted Answer

A)   an immunologic technique.
B)   a genetic method.
C)   a phenotypic method.
D)   a microscopic technique.E) A) and B)
F) A) and C)

Question 13

The Widal test is used for diagnosing salmonellosis.

Accepted Answer

A) True 
 B)False

Question 14

Serological tests should have low sensitivity and specificity.

Accepted Answer

A) True 
 B)False

Question 15

Culture of patient specimens to detect pathogens is usually done on blood agar plates only.

Accepted Answer

A) True 
 B)False

Question 16

Test systems involving which of the following has greatly improved the specificity of immunological tests?

Accepted Answer

A)   Monoclonal antibodies
B)   Electronics
C)   Enzymes
D)   Radioactivity
E)   All of these choices are correct.F) A) and B)
G) A) and C)

Exam 17: Procedures for Identifying Pathogens and Diagnosing Infections

Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?

Correct Answer
verified

The more a sample can be diluted and yet still react with antigen, the the concentration of antibodies in that sample and the _ is its titer.

Correct Answer
verified

Which test is used to measure the IgE present in allergic patients?

Correct Answer
verified

Describe the indirect ELISA test that is used as a screening test for HIV AIDS) and include the following: a) sequence of procedures, b) reagents used, and c) detection and interpretation of a positive test.

Correct Answer
verified

The Widal test is used for diagnosing salmonellosis.

Correct Answer
verified

Serological testing always involves reactions between specific antibody and antigen.

Correct Answer
verified

Culture of patient specimens to detect pathogens is usually done on blood agar plates only.

Correct Answer
verified

In a __________, antigens or antibodies are labeled with radioactive isotopes and traced.

Correct Answer
verified

Describe three possible sampling sites and methods of collection for clinical laboratories.

Correct Answer
Answered by ExamLex AI
1. Blood Collection from a Vein: One com...
View Answer

Pulsed-field gel electrophoresis PFGE) is often used to determine whether bacterial isolates from different cases of food-borne illness are the same and can be traced to the same source. This is an example of

Correct Answer
verified

Serological tests should have low sensitivity and specificity.

Correct Answer
verified

ELISA tests use a fluorescent dye as a label to trace antigen-antibody reactions.

Correct Answer
verified

In indirect fluorescent testing, fluorescent _____ are used to react with the Fc region of another, specific, serum antibody.

Correct Answer
verified

Tests that take place in the lab, such as in a test tube or Petri-dish, outside of a living host, are referred to as _ whereas tests that take place in a living host, such as in a patient, are described as .

Correct Answer
verified

Which technique used to diagnose a disease is also called the double diffusion method?

Correct Answer
verified

Test systems involving which of the following has greatly improved the specificity of immunological tests?

Correct Answer
verified

Exam 17: Procedures for Identifying Pathogens and Diagnosing Infections

Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?

Correct AnswerverifiedShow Answer

The more a sample can be diluted and yet still react with antigen, the ______ the concentration of antibodies in that sample and the _______ is its titer.

Correct AnswerverifiedShow Answer

Which test is used to measure the IgE present in allergic patients?

Correct AnswerverifiedShow Answer

Describe the indirect ELISA test that is used as a screening test for HIV AIDS) and include the following: a) sequence of procedures, b) reagents used, and c) detection and interpretation of a positive test.

Correct AnswerverifiedShow Answer

The Widal test is used for diagnosing salmonellosis.

Correct AnswerverifiedShow Answer

Serological testing always involves reactions between specific antibody and antigen.

Correct AnswerverifiedShow Answer

Culture of patient specimens to detect pathogens is usually done on blood agar plates only.

Correct AnswerverifiedShow Answer

In a __________, antigens or antibodies are labeled with radioactive isotopes and traced.

Correct AnswerverifiedShow Answer

Describe three possible sampling sites and methods of collection for clinical laboratories.

Correct AnswerAnswered by ExamLex AI1. Blood Collection from a Vein: One com...View AnswerShow Answer

Pulsed-field gel electrophoresis PFGE) is often used to determine whether bacterial isolates from different cases of food-borne illness are the same and can be traced to the same source. This is an example of

Correct AnswerverifiedShow Answer

Serological tests should have low sensitivity and specificity.

Correct AnswerverifiedShow Answer

ELISA tests use a fluorescent dye as a label to trace antigen-antibody reactions.

Correct AnswerverifiedShow Answer

In indirect fluorescent testing, fluorescent _____ are used to react with the Fc region of another, specific, serum antibody.

Correct AnswerverifiedShow Answer

Tests that take place in the lab, such as in a test tube or Petri-dish, outside of a living host, are referred to as _______________ whereas tests that take place in a living host, such as in a patient, are described as ______________.

Correct AnswerverifiedShow Answer

Which technique used to diagnose a disease is also called the double diffusion method?

Correct AnswerverifiedShow Answer

Test systems involving which of the following has greatly improved the specificity of immunological tests?

Correct AnswerverifiedShow Answer

Correct Answer
verified

The more a sample can be diluted and yet still react with antigen, the the concentration of antibodies in that sample and the _ is its titer.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
verified

Correct Answer
Answered by ExamLex AI
1. Blood Collection from a Vein: One com...
View Answer

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Tests that take place in the lab, such as in a test tube or Petri-dish, outside of a living host, are referred to as _ whereas tests that take place in a living host, such as in a patient, are described as .

Correct Answer
verified

Correct Answer
verified

Correct Answer
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