Question 1

Maggie was told she has a positive titer to measles.Which of the following could explain this?

Accepted Answer

A)  She was vaccinated against measles.
B)  She had measles sometime in her life.
C)  She has measles now.
D)  The test was a false positive.
E)  All of the choices are correct.F) None of the above
G) B) and E)

Question 2

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

Accepted Answer

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

Question 3

In _________ tests, antibody cross-links whole-cell antigens, forming complexes that settle out and form visible clumps in the test chamber.

Accepted Answer

The answer of In _________ tests, antibody cross-links whole-cell antigens,...

Question 4

Sputum is obtained by:

Accepted Answer

A)  swabbing the mouth to sample saliva.
B)  a clean catch urine sample.
C)  the patient coughing up mucus from the lower respiratory system.
D)  a spinal tap above the chest.
E)  a throat swab.F) B) and E)
G) B) and D)

Question 5

The property of a test to detect even small amounts of antibodies or antigens that are test targets is:

Accepted Answer

A)  cross-reactions.
B)  agglutination.
C)  precipitation.
D)  specificity.
E)  sensitivity.F) C) and D)
G) B) and C)

Question 6

Some diseases are diagnosed without the need to identify microbes from a patient specimen.

Accepted Answer

A) True 
 B)False

Question 7

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 indirect ELISA test for HIV (AIDS) i...

Question 8

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

Accepted Answer

Learning Outcome: 17.01 Describe what is...

Question 9

When serum proteins are separated by electrophoresis and then antibodies specific for the serum proteins are placed in a parallel trough in order to form reaction arcs for each protein, the test is called:

Accepted Answer

A)  Ouchterlony double diffusion.
B)  Western blot.
C)  immunelectrophoresis.
D)  radioimmunoassay (RI
A)  .
E)  the Quellung test.F) B) and C)
G) D) and E)

Question 10

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

Accepted Answer

A) True 
 B)False

Question 11

Which of the following methods is categorized as a direct test in order to analyze a specimen?

Accepted Answer

A)  Catalase test
B)  Gram stain
C)  Phage typing
D)  Antimicrobic sensitivity
E)  Production of gasF) A) and D)
G) A) and C)

Question 12

Flowcharts that offer two choices at each identifying level are called ___ keys.

Accepted Answer

Flowcharts that offer two choices at eac...

Question 13

Which of the following is incorrect regarding the complement fixation test?

Accepted Answer

A)  First antigen and antibody are allowed to react.
B)  Purified complement proteins are added to the antigen-antibody tube.
C)  Sheep red blood cells are added to the antigen-antibody-complement mixture.
D)  Hemolysis of the sheep red blood cells occurs in a positive test result.
E)  None of the choices are correct.F) D) and E)
G) B) and E)

Exam 17: Procedures for Identifying Pathogens and Diagnosing Infections

Maggie was told she has a positive titer to measles.Which of the following could explain this?

Correct Answer
verified

Some diseases are diagnosed without the need to identify microbes from a patient specimen.

Correct Answer
verified

When serum proteins are separated by electrophoresis and then antibodies specific for the serum proteins are placed in a parallel trough in order to form reaction arcs for each protein, the test is called:

Correct Answer
verified

The property of a test to detect even small amounts of antibodies or antigens that are test targets is:

Correct Answer
verified

Sputum is obtained by:

Correct Answer
verified

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

Correct Answer
verified
Learning Outcome: 17.01 Describe what is...
View Answer

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

Correct Answer
verified

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

Correct Answer
verified

Which of the following methods is categorized as a direct test in order to analyze a specimen?

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
Answered by ExamLex AI
The indirect ELISA test for HIV (AIDS) i...
View Answer

Which of the following is incorrect regarding the complement fixation test?

Correct Answer
verified

Flowcharts that offer two choices at each identifying level are called ___ keys.

Correct Answer
Answered by ExamLex AI
Flowcharts that offer two choices at eac...
View Answer

In _________ tests, antibody cross-links whole-cell antigens, forming complexes that settle out and form visible clumps in the test chamber.

Correct Answer
verified

Exam 17: Procedures for Identifying Pathogens and Diagnosing Infections

Maggie was told she has a positive titer to measles.Which of the following could explain this?

Correct AnswerverifiedShow Answer

Some diseases are diagnosed without the need to identify microbes from a patient specimen.

Correct AnswerverifiedShow Answer

When serum proteins are separated by electrophoresis and then antibodies specific for the serum proteins are placed in a parallel trough in order to form reaction arcs for each protein, the test is called:

Correct AnswerverifiedShow Answer

The property of a test to detect even small amounts of antibodies or antigens that are test targets is:

Correct AnswerverifiedShow Answer

Sputum is obtained by:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedLearning Outcome: 17.01 Describe what is...View AnswerShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following methods is categorized as a direct test in order to analyze a specimen?

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 AnswerAnswered by ExamLex AIThe indirect ELISA test for HIV (AIDS) i...View AnswerShow Answer

Which of the following is incorrect regarding the complement fixation test?

Correct AnswerverifiedShow Answer

Flowcharts that offer two choices at each identifying level are called ___ keys.

Correct AnswerAnswered by ExamLex AIFlowcharts that offer two choices at eac...View AnswerShow Answer

In _________ tests, antibody cross-links whole-cell antigens, forming complexes that settle out and form visible clumps in the test chamber.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Learning Outcome: 17.01 Describe what is...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The indirect ELISA test for HIV (AIDS) i...
View Answer

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Flowcharts that offer two choices at eac...
View Answer

Correct Answer
verified