Question 1

Minimizing the number of microorganism present on surfaces to a level causing no health problems:

Accepted Answer

A)   Disinfection
B)   Cleaning
C)   Sterilization
D)   InspissationE) A) and D)
F) None of the above

Question 2

High level Disinfection kills all of the following except:

Accepted Answer

A)   Vegetative bacteria
B)   All spores
C)   Fungi
D)   Winde range of virusesE) A) and D)
F) C) and D)

Question 3

Degree of Pathogenicity:

Accepted Answer

A)   Virulence
B)   Infection
C)   Transmission
D)   Variance FactorsE) All of the above
F) B) and D)

Question 4

Alcohols mechanism of action:

Accepted Answer

A)   Denaturation of proteins
B)   Disrupting cytoplasmic membrane
C)   Alkylation of nucleic acids
D)   Inhibition of glucose oxidationE) B) and C)
F) A) and B)

Question 5

Low Level disinfection skills:

Accepted Answer

A)   Tubercle bacilli
B)   Wide range of viruses
C)   Many bacterial spores
D)   Vegetative bacteriaE) None of the above
F) C) and D) D

Question 6

The power of bacteria to invade tissues is due to the following except:

Accepted Answer

A)   Hyaluronidase
B)   Collagenase
C)   Lecithinase
D)   Pill
E)   FibrinolysinF) A) and E)
G) B) and D)

Question 7

The organism continue to grow with or without producing symptoms:

Accepted Answer

A)   Acute infection
B)   Latent infection
C)   2ry infection
D)   Chronic infectionE) All of the above
F) A) and B)

Question 8

Used for surgical hand scrub:

Accepted Answer

A)   Alcohol
B)   Penol
C)   Chorine
D)   IodineE) C) and D)
F) None of the above

Question 9

Uses of chlorine releasing agents:

Accepted Answer

A)   Disinfection of water
B)   Environmental disinfectant
C)   Household bleach
D)   all of the above
E)   None of the aboveF) A) and D)
G) B) and C)

Question 10

Intermediate level disinfectants include the following except:

Accepted Answer

A)   Phenol
B)   Alcohol
C)   QAC
D)   Chlorine releasing agentsE) A) and D)
F) A) and B) C

Question 11

Hot air oven generates hot air at:

Accepted Answer

A)   140 - 160 C
B)   160 - 180 C
C)   120 - 140 C
D)   100 CE) All of the above
F) C) and D)

Question 12

Sugar media are sterilized through the process of:

Accepted Answer

A)   Radiation
B)   Hot air oven
C)   Tyndalization
D)   AutoclavingE) A) and B)
F) B) and C)

Question 13

Example for Air Filters:

Accepted Answer

A)   Salts filter
B)   Sintered filters
C)   HEPA Filter
D)   Cellulose filterE) A) and B)
F) B) and C) C

Question 14

Sterilization of bacteriologic loops:

Accepted Answer

A)   Boiling
B)   Flaming
C)   Incinerating
D)   AutoclavingE) C) and D)
F) None of the above

Question 15

One fact is false about endotoxins:

Accepted Answer

A)   Produced by gram -ve bacteria
B)   Produce fever
C)   Can be converted to toxoids
D)   Of chromosomal origin
E)   Polysaccharide in natureF) C) and D)
G) A) and B)

Question 16

Exotoxins:

Accepted Answer

A)   Lipoproteins
B)   LPS
C)   Nucleic acid
D)   Portent
E)   PeptidoglycanF) D) and E)
G) A) and D)

Question 17

All of the following are disinfectants except:

Accepted Answer

A)   Phenol
B)   Chlorine releasing agents
C)   Iodine
D)   GluteraldehydesE) A) and B)
F) B) and C)

Question 18

Protein secreted by both gram positive and gram negative bacteria:

Accepted Answer

A)   Endotoxin
B)   Exotoxin
C)   Growth factor
D)   CytotoxinE) A) and D)
F) B) and C)

Question 19

Infectious dose of shigella is:

Accepted Answer

A)   10
B)   100
C)   100000
D)   1000000E) C) and D)
F) None of the above

Question 20

Intermediate level disinfection skills all of the following except:

Accepted Answer

A)   Tubercle bacilli
B)   Wide range of viruses
C)   little number of viruses
D)   FungiE) C) and D)
F) A) and D)

Exam 1: Sterilization

Minimizing the number of microorganism present on surfaces to a level causing no health problems:

Correct AnswerverifiedShow Answer

High level Disinfection kills all of the following except:

Correct AnswerverifiedShow Answer

Degree of Pathogenicity:

Correct AnswerverifiedShow Answer

Alcohols mechanism of action:

Correct AnswerverifiedShow Answer

Low Level disinfection skills:

Correct AnswerverifiedD

The power of bacteria to invade tissues is due to the following except:

Correct AnswerverifiedShow Answer

The organism continue to grow with or without producing symptoms:

Correct AnswerverifiedShow Answer

Used for surgical hand scrub:

Correct AnswerverifiedShow Answer

Uses of chlorine releasing agents:

Correct AnswerverifiedShow Answer

Intermediate level disinfectants include the following except:

Correct AnswerverifiedC

Hot air oven generates hot air at:

Correct AnswerverifiedShow Answer

Sugar media are sterilized through the process of:

Correct AnswerverifiedShow Answer

Example for Air Filters:

Correct AnswerverifiedC

Sterilization of bacteriologic loops:

Correct AnswerverifiedShow Answer

One fact is false about endotoxins:

Correct AnswerverifiedShow Answer

Exotoxins:

Correct AnswerverifiedShow Answer

All of the following are disinfectants except:

Correct AnswerverifiedShow Answer

Protein secreted by both gram positive and gram negative bacteria:

Correct AnswerverifiedShow Answer

Infectious dose of shigella is:

Correct AnswerverifiedShow Answer

Intermediate level disinfection skills all of the following except:

Correct AnswerverifiedShow Answer

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D

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C

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C

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