Question 1

Commercial products containing which types of chemicals are more effective at killing microorganisms?

Accepted Answer

A)  bacteriostatic
B)  bacteriocidal
C)  carbohydrate
D)  leadE) A) and C)
F) All of the above

Question 2

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is

Accepted Answer

A)  disinfection.
B)  sterilization.
C)  antisepsis.
D)  sanitization.
E)  degermation.F) A) and C)
G) C) and D)

Question 3

Which common hospital pathogen is able to grow abundantly in soap dishes?

Accepted Answer

A)  Escherichia coli
B)  Pseudomonas
C)  Hemophilus influenzae
D)  Mycobacteria tuberculosis
E)  SalmonellaF) A) and B)
G) A) and E)

Question 4

Discuss the advantages and disadvantages of irradiating food.Include examples of foods that are irradiated.

Accepted Answer

Irradiating food has several advantages,...

Question 5

Filtration is an effective method to remove microbes from air and liquids.

Accepted Answer

A) True 
 B)False

Question 6

Bacteriocidal agents are sterilants.

Accepted Answer

A) True 
 B)False

Question 7

Explain why boiling water is considered disinfection, not a sterilization method.List three materials commonly disinfected by boiling water.

Accepted Answer

Boiling water is considered a disinfecti...

Question 8

Endospores can be killed by

Accepted Answer

A)  dry heat at 170°C for 2 hours.
B)  incineration.
C)  glutaldehyde for 8 or more hours.
D)  ethylene oxide for 3 or more hours.
E)  All of these choices are correct.F) A) and E)
G) A) and D)

Question 9

Which of these metals have antimicrobial properties associated with them?

Accepted Answer

A)  Silver
B)  Gold
C)  Tin
D)  Aluminum
E)  both silver and goldF) A) and E)
G) B) and C)

Question 10

Most microbial contaminants of food are killed at freezing temperatures.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is not used as an antiseptic?

Accepted Answer

A)  iodophor
B)  chlorhexidine
C)  3% hydrogen peroxide
D)  ethyl alcohol
E)  aqueous glutaraldehydeF) None of the above
G) A) and B)

Question 12

Which of the following items are typically irradiated in order to kill microbes?

Accepted Answer

A)  ground beef and other meat and poultry
B)  human tissues such as heart valves and skin
C)  operating room air
D)  surgical gloves
E)  All of these choices are correct.F) A) and B)
G) A) and E)

Question 13

Isopropyl alcohol wiped across a skin site can sterilize it.

Accepted Answer

A) True 
 B)False

Question 14

All of the following pertain to hypochlorites, except

Accepted Answer

A)  they release hypochlorous acid in solution.
B)  they cause denaturation of enzymes.
C)  they are found in iodophors.
D)  they are used to disinfect dairy, restaurant, and medical equipment.
E)  they are found in common household bleach.F) D) and E)
G) A) and B)

Question 15

Alcohols are more effective at inactivating enveloped viruses than naked viruses.

Accepted Answer

A) True 
 B)False

Question 16

Compare and contrast antisepsis, disinfection, sanitization, and sterilization with regard to techniques used and level of microbial control achieved.

Accepted Answer

Antisepsis, disinfection, sanitization, ...

Question 17

All of the following are correct about iodophors, except

Accepted Answer

A)  they are complexes of iodine and a neutral polymer.
B)  this formulation allows a quick release of free iodine.
C)  this formulation increases its penetration.
D)  it is less prone to staining or irritating tissue.
E)  a common iodophor is Betadine.F) A) and B)
G) A) and C)

Question 18

Discuss the purpose and level of control achieved by pasteurization.Compare the flash and batch methods.

Accepted Answer

Pasteurization is a process used to kill...

Question 19

Which method of microbial control destroys microorganisms by oxidation of cells?

Accepted Answer

A)  steam autoclave
B)  use of glutaraldehyde
C)  use of UV radiation
D)  incinerationE) A) and B)
F) A) and C)

Question 20

For each item listed below, select a sterilant that you feel is the most suitable and effective for that item.Discuss why you selected each sterilant.
A) plastic Petri dishes to be used for nutrient media
B) glass tubes of bacterial cultures to be discarded
C) sterile milk
D) dozens of reusable glass pipets
E) bone tissue for grafting
F) room air
G) hospital mattresses
H) biopsy tissue for histology analysis
I) plastic respiratory therapy equipment and arthroscopes
J) vaccines

Accepted Answer

A) plastic Petri dishes to be used for n...

Exam 11: Physical and Chemical Agents for Microbial Control

Commercial products containing which types of chemicals are more effective at killing microorganisms?

Correct Answer
verified

Which common hospital pathogen is able to grow abundantly in soap dishes?

Correct Answer
verified

Most microbial contaminants of food are killed at freezing temperatures.

Correct Answer
verified

Discuss the purpose and level of control achieved by pasteurization.Compare the flash and batch methods.

Correct Answer
Answered by ExamLex AI
Pasteurization is a process used to kill...
View Answer

Compare and contrast antisepsis, disinfection, sanitization, and sterilization with regard to techniques used and level of microbial control achieved.

Correct Answer
Answered by ExamLex AI
Antisepsis, disinfection, sanitization, ...
View Answer

Which of these metals have antimicrobial properties associated with them?

Correct Answer
verified

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is

Correct Answer
verified

All of the following are correct about iodophors, except

Correct Answer
verified

Isopropyl alcohol wiped across a skin site can sterilize it.

Correct Answer
verified

Bacteriocidal agents are sterilants.

Correct Answer
verified

All of the following pertain to hypochlorites, except

Correct Answer
verified

Filtration is an effective method to remove microbes from air and liquids.

Correct Answer
verified

Which method of microbial control destroys microorganisms by oxidation of cells?

Correct Answer
verified

Alcohols are more effective at inactivating enveloped viruses than naked viruses.

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
A) plastic Petri dishes to be used for n...
View Answer

Explain why boiling water is considered disinfection, not a sterilization method.List three materials commonly disinfected by boiling water.

Correct Answer
Answered by ExamLex AI
Boiling water is considered a disinfecti...
View Answer

Endospores can be killed by

Correct Answer
verified

Which of the following items are typically irradiated in order to kill microbes?

Correct Answer
verified

Discuss the advantages and disadvantages of irradiating food.Include examples of foods that are irradiated.

Correct Answer
Answered by ExamLex AI
Irradiating food has several advantages,...
View Answer

Which of the following is not used as an antiseptic?

Correct Answer
verified

Exam 11: Physical and Chemical Agents for Microbial Control

Commercial products containing which types of chemicals are more effective at killing microorganisms?

Correct AnswerverifiedShow Answer

Which common hospital pathogen is able to grow abundantly in soap dishes?

Correct AnswerverifiedShow Answer

Most microbial contaminants of food are killed at freezing temperatures.

Correct AnswerverifiedShow Answer

Discuss the purpose and level of control achieved by pasteurization.Compare the flash and batch methods.

Correct AnswerAnswered by ExamLex AIPasteurization is a process used to kill...View AnswerShow Answer

Compare and contrast antisepsis, disinfection, sanitization, and sterilization with regard to techniques used and level of microbial control achieved.

Correct AnswerAnswered by ExamLex AIAntisepsis, disinfection, sanitization, ...View AnswerShow Answer

Which of these metals have antimicrobial properties associated with them?

Correct AnswerverifiedShow Answer

The use of chemical agents directly on exposed body surfaces to destroy or inhibit vegetative pathogens is

Correct AnswerverifiedShow Answer

All of the following are correct about iodophors, except

Correct AnswerverifiedShow Answer

Isopropyl alcohol wiped across a skin site can sterilize it.

Correct AnswerverifiedShow Answer

Bacteriocidal agents are sterilants.

Correct AnswerverifiedShow Answer

All of the following pertain to hypochlorites, except

Correct AnswerverifiedShow Answer

Filtration is an effective method to remove microbes from air and liquids.

Correct AnswerverifiedShow Answer

Which method of microbial control destroys microorganisms by oxidation of cells?

Correct AnswerverifiedShow Answer

Alcohols are more effective at inactivating enveloped viruses than naked viruses.

Correct AnswerverifiedShow Answer

Correct AnswerAnswered by ExamLex AIA) plastic Petri dishes to be used for n...View AnswerShow Answer

Explain why boiling water is considered disinfection, not a sterilization method.List three materials commonly disinfected by boiling water.

Correct AnswerAnswered by ExamLex AIBoiling water is considered a disinfecti...View AnswerShow Answer

Endospores can be killed by

Correct AnswerverifiedShow Answer

Which of the following items are typically irradiated in order to kill microbes?

Correct AnswerverifiedShow Answer

Discuss the advantages and disadvantages of irradiating food.Include examples of foods that are irradiated.

Correct AnswerAnswered by ExamLex AIIrradiating food has several advantages,...View AnswerShow Answer

Which of the following is not used as an antiseptic?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Pasteurization is a process used to kill...
View Answer

Correct Answer
Answered by ExamLex AI
Antisepsis, disinfection, sanitization, ...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
A) plastic Petri dishes to be used for n...
View Answer

Correct Answer
Answered by ExamLex AI
Boiling water is considered a disinfecti...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
Answered by ExamLex AI
Irradiating food has several advantages,...
View Answer

Correct Answer
verified