Question 1

Agglutination tests use particulate antigens while precipitation tests use soluble antigens.

Accepted Answer

A) True 
 B)False

Question 2

Patientʹs serum, influenza virus, and red blood cells are mixed in a tube. What happens if the patient has antibodies against influenza virus?

Accepted Answer

A)   hemolysis
B)   agglutination
C)   hemagglutination
D)   complement fixation
E)   hemagglutination-inhibitionF) A) and D)
G) D) and E)

Question 3

Isolated and purified hepatitis B virus surface antigen can be used in a(n)

Accepted Answer

A)   inactivated whole-agent vaccine.
B)   attenuated whole-agent vaccine.
C)   conjugated vaccine.
D)   subunit vaccine.
E)   toxoid vaccine.F) A) and E)
G) None of the above

Question 4

Figure 18.1 is an illustration of a(an)

Accepted Answer

A)   negative indirect ELISA test.
B)   positive indirect ELISA test.
C)   complement fixation test.
D)   precipitation test.
E)   hemagglutination test.F) B) and D)
G) A) and C)

Question 5

In a direct ELISA test to screen for drugs in a patientʹs urine, what is the third step in the test process?

Accepted Answer

A)   enzyme-labeled antibodies against the drug being tested is added
B)   substrate for the enzyme is added
C)   antibody against the drug being tested is added
D)   the patientʹs urine sample is dilutedE) None of the above
F) A) and D)

Question 6

Which of the following is a test to determine the presence of soluble antigens in a patientʹs saliva?

Accepted Answer

A)   immunofluorescence
B)   precipitation reaction
C)   passive agglutination reaction
D)   neutralization reaction
E)   direct agglutination reactionF) A) and E)
G) All of the above

Question 7

Which of the following uses fluorescent-labeled antibodies?

Accepted Answer

A)   neutralization
B)   complement fixation
C)   precipitation
D)   flow cytometry
E)   agglutinationF) A) and E)
G) B) and D)

Question 8

The clumping of test red blood cells indicates a negative test result (no antibodies against the virus in the patientʹs serum)  in the

Accepted Answer

A)   precipitation test.
B)   indirect agglutination test.
C)   direct agglutination test.
D)   viral hemagglutination inhibition test.
E)   complement-fixation test.F) A) and C)
G) C) and D)

Question 9

Which of the following tests is MOST useful in determining the presence of AIDS antibodies?

Accepted Answer

A)   neutralization
B)   agglutination
C)   complement fixation
D)   indirect ELISA
E)   direct fluorescent-antibodyF) None of the above
G) C) and E)

Question 10

Describe an ELISA test to detect the presence of HIV antibodies in a patient.

Accepted Answer

ELISA, or enzyme-linked immunosorbent as...

Question 11

The following steps are used to produce monoclonal antibodies. What is the fourth step?

Accepted Answer

A)   Culture the hybridoma in a selective medium.
B)   A B cell is activated to produce antibodies.
C)   Isolate antibody-producing B cells.
D)   Vaccinate a mouse.
E)   Fuse a B cell to a myeloma cell.F) B) and E)
G) A) and E)

Question 12

Which of the following are sources of antibodies for serological testing?

Accepted Answer

A)   cells producing monoclonal antibodies
B)   vaccinated animals
C)   vaccinated animals, cells producing monoclonal antibodies, and viral cultures
D)   vaccinated animals and cells producing monoclonal antibodies
E)   viral culturesF) A) and C)
G) A) and E)

Question 13

Table 18.1
Antibody Titer   Day 1  Day 7 Day 14  Day 21  Patient A 00256512 Patient B 1282565121024 Patient C 0000 Patient D 128128128128\begin{array} { | l | l | l | l | l | } \hline & 	ext { Day 1 } & 	ext { Day } 7 & 	ext { Day 14 } & 	ext { Day 21 } \\hline 	ext { Patient A } & 0 & 0 & 256 & 512 \\hline 	ext { Patient B } & 128 & 256 & 512 & 1024 \\hline 	ext { Patient C } & 0 & 0 & 0 & 0 \\hline 	ext { Patient D } & 128 & 128 & 128 & 128 \\hline\end{array} Patient A  Patient B  Patient C  Patient D ​ Day 1 01280128​ Day 702560128​ Day 14 2565120128​ Day 21 51210240128​​ 
-In Table 18.1, who showed seroconversion during these observations?

Accepted Answer

A)   Patient A
B)   Patient B
C)   Patient C
D)   Patient D E) A) and B)
F) C) and D)

Question 14

Adjuvants such as aluminum salts are used as additives in vaccines to enhance immune responses.

Accepted Answer

A) True 
 B)False

Question 15

A vaccine against HIV proteins made by a genetically -engineered vaccinia virus that has infected a eukaryotic cell line is a(n)

Accepted Answer

A)   toxoid vaccine.
B)   subunit vaccine.
C)   conjugated vaccine.
D)   nucleic acid vaccine.
E)   inactivated whole-agent vaccine.F) D) and E)
G) C) and E)

Question 16

In an agglutination test, eight serial dilutions to determine antibody titer were set up. Tube #1 contained a 1:2 dilution; tube #2, a 1:4, etc. If tube #6 is the last tube showing agglutination, what is the antibody titer?

Accepted Answer

A)   6
B)   1:6
C)   1:32
D)   32
E)   64F) C) and D)
G) A) and E)

Question 17

Which of the following statements about measles is FALSE?

Accepted Answer

A)   It is preventable by vaccination.
B)   Annually, it kills thousands of children worldwide.
C)   It is a serious disease.
D)   The disease has been eradicated in the United States.
E)   Complications include pneumonia, encephalitis, and death.F) A) and B)
G) D) and E)

Question 18

In your work in a county public health clinic, you encounter parents of a three -month-old who are considering not vaccinating their child. What concerns might the parents raise regarding vaccine safety? As a microbiology student and public health care worker, what do you say to these parents regarding the risks of not vaccinating their child?

Accepted Answer

The concerns that parents might raise re...

Exam 18: Practical Applications of Immunology

Adjuvants such as aluminum salts are used as additives in vaccines to enhance immune responses.

Correct Answer
verified

Which of the following are sources of antibodies for serological testing?

Correct Answer
verified

A vaccine against HIV proteins made by a genetically -engineered vaccinia virus that has infected a eukaryotic cell line is a(n)

Correct Answer
verified

Which of the following statements about measles is FALSE?

Correct Answer
verified

The following steps are used to produce monoclonal antibodies. What is the fourth step?

Correct Answer
verified

Figure 18.1 is an illustration of a(an)

Correct Answer
verified

Patientʹs serum, influenza virus, and red blood cells are mixed in a tube. What happens if the patient has antibodies against influenza virus?

Correct Answer
verified

Agglutination tests use particulate antigens while precipitation tests use soluble antigens.

Correct Answer
verified

Which of the following uses fluorescent-labeled antibodies?

Correct Answer
verified

In an agglutination test, eight serial dilutions to determine antibody titer were set up. Tube #1 contained a 1:2 dilution; tube #2, a 1:4, etc. If tube #6 is the last tube showing agglutination, what is the antibody titer?

Correct Answer
verified

In a direct ELISA test to screen for drugs in a patientʹs urine, what is the third step in the test process?

Correct Answer
verified

Which of the following tests is MOST useful in determining the presence of AIDS antibodies?

Correct Answer
verified

Describe an ELISA test to detect the presence of HIV antibodies in a patient.

Correct Answer
Answered by ExamLex AI
ELISA, or enzyme-linked immunosorbent as...
View Answer

Which of the following is a test to determine the presence of soluble antigens in a patientʹs saliva?

Correct Answer
verified

Isolated and purified hepatitis B virus surface antigen can be used in a(n)

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The concerns that parents might raise re...
View Answer

The clumping of test red blood cells indicates a negative test result (no antibodies against the virus in the patientʹs serum) in the

Correct Answer
verified

Exam 18: Practical Applications of Immunology

Adjuvants such as aluminum salts are used as additives in vaccines to enhance immune responses.

Correct AnswerverifiedShow Answer

Which of the following are sources of antibodies for serological testing?

Correct AnswerverifiedShow Answer

A vaccine against HIV proteins made by a genetically -engineered vaccinia virus that has infected a eukaryotic cell line is a(n)

Correct AnswerverifiedShow Answer

Which of the following statements about measles is FALSE?

Correct AnswerverifiedShow Answer

The following steps are used to produce monoclonal antibodies. What is the fourth step?

Correct AnswerverifiedShow Answer

Figure 18.1 is an illustration of a(an)

Correct AnswerverifiedShow Answer

Patientʹs serum, influenza virus, and red blood cells are mixed in a tube. What happens if the patient has antibodies against influenza virus?

Correct AnswerverifiedShow Answer

Agglutination tests use particulate antigens while precipitation tests use soluble antigens.

Correct AnswerverifiedShow Answer

Which of the following uses fluorescent-labeled antibodies?

Correct AnswerverifiedShow Answer

In an agglutination test, eight serial dilutions to determine antibody titer were set up. Tube #1 contained a 1:2 dilution; tube #2, a 1:4, etc. If tube #6 is the last tube showing agglutination, what is the antibody titer?

Correct AnswerverifiedShow Answer

In a direct ELISA test to screen for drugs in a patientʹs urine, what is the third step in the test process?

Correct AnswerverifiedShow Answer

Which of the following tests is MOST useful in determining the presence of AIDS antibodies?

Correct AnswerverifiedShow Answer

Describe an ELISA test to detect the presence of HIV antibodies in a patient.

Correct AnswerAnswered by ExamLex AIELISA, or enzyme-linked immunosorbent as...View AnswerShow Answer

Which of the following is a test to determine the presence of soluble antigens in a patientʹs saliva?

Correct AnswerverifiedShow Answer

Isolated and purified hepatitis B virus surface antigen can be used in a(n)

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct AnswerAnswered by ExamLex AIThe concerns that parents might raise re...View AnswerShow Answer

The clumping of test red blood cells indicates a negative test result (no antibodies against the virus in the patientʹs serum) in the

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
verified

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
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
ELISA, or enzyme-linked immunosorbent as...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
The concerns that parents might raise re...
View Answer

Correct Answer
verified