1|Page
4Y051 CDC Vol.1|Comprehensive
Revision Questions With Verified
Answers 2026
What must be done before equipment that has had contact with blood or OPIM is
serviced on-site or shipped out of the facility? - correct-answer - Decontaminate
it to the extent feasible or label as a biohazard, indicating which parts could not
be decontaminated.
How must contaminated disposable sharps be discarded? - correct-answer - All
items must be disposed of immediately, or as soon as feasible, in puncture
resistant, leak proof containers which are colored red or labeled "biohazard" and
marked with the biohazard symbol.
,2|Page
What items are considered as contaminated laundry? - correct-answer - All
protective clothing and only contaminated clinical attire
The environmental surfaces can be divided into how many surfaces? - correct-
answer - 2
What is the first step in creating a safe environment? - correct-answer - Cleaning
What level of microorganisms has the lowest resistance level to disinfecting
agents? - correct-answer - Vegetative bacteria
What is the most resistant form of life known? - correct-answer - Bacterial
endospores
, 3|Page
Which of the following is not a chemical disinfectant level? - correct-answer -
Moderate
Agents which inhibit or suppress future bacterial growth but don't actually
destroy all bacteria present on the affected surfaces are termed - correct-answer
- Bacteriostatics
High-level disinfectants are effective against viruses similar to the hepatitus virus -
correct-answer - vegetative bacteria, fungi, tubercle bacillus, and bacterial spores
What level of disinfectant is used on semicritical surfaces that are not covered
with a protective barrier - correct-answer - Intermediate
Other than detergents, the disinfectants included in the low level group are
quaternary ammonium compounds - correct-answer - and simple phenolics
4Y051 CDC Vol.1|Comprehensive
Revision Questions With Verified
Answers 2026
What must be done before equipment that has had contact with blood or OPIM is
serviced on-site or shipped out of the facility? - correct-answer - Decontaminate
it to the extent feasible or label as a biohazard, indicating which parts could not
be decontaminated.
How must contaminated disposable sharps be discarded? - correct-answer - All
items must be disposed of immediately, or as soon as feasible, in puncture
resistant, leak proof containers which are colored red or labeled "biohazard" and
marked with the biohazard symbol.
,2|Page
What items are considered as contaminated laundry? - correct-answer - All
protective clothing and only contaminated clinical attire
The environmental surfaces can be divided into how many surfaces? - correct-
answer - 2
What is the first step in creating a safe environment? - correct-answer - Cleaning
What level of microorganisms has the lowest resistance level to disinfecting
agents? - correct-answer - Vegetative bacteria
What is the most resistant form of life known? - correct-answer - Bacterial
endospores
, 3|Page
Which of the following is not a chemical disinfectant level? - correct-answer -
Moderate
Agents which inhibit or suppress future bacterial growth but don't actually
destroy all bacteria present on the affected surfaces are termed - correct-answer
- Bacteriostatics
High-level disinfectants are effective against viruses similar to the hepatitus virus -
correct-answer - vegetative bacteria, fungi, tubercle bacillus, and bacterial spores
What level of disinfectant is used on semicritical surfaces that are not covered
with a protective barrier - correct-answer - Intermediate
Other than detergents, the disinfectants included in the low level group are
quaternary ammonium compounds - correct-answer - and simple phenolics
