ABA Sanitation & Disinfection Protocols 3

Question 1

Which type of pathogen is MOST resistant to standard disinfection and therefore may require sterilization?

Accepted Answer

Bacterial endospores

Answer

Bacterial endospores (e.g., Clostridium) are the most resistant microbial forms and typically require sterilization, not just disinfection.

Question 2

A quaternary ammonium compound (quat) disinfectant is LESS effective in the presence of:

Accepted Answer

Organic matter such as hair, oil, or blood

Answer

Organic matter binds to and neutralizes quat solutions, significantly reducing their disinfecting ability — implements must be cleaned before disinfecting.

Question 3

Which government agency sets workplace exposure limits for chemical disinfectants used in barbershops?

Accepted Answer

OSHA (Occupational Safety and Health Administration)

Answer

OSHA establishes permissible exposure limits (PELs) for chemicals in the workplace, including disinfectants used in personal-service establishments.

Question 4

When mixing a disinfectant solution from concentrate, which safety practice is MOST important?

Accepted Answer

Always add concentrate to water, never water to concentrate

Answer

Adding concentrate to water prevents dangerous splashing or exothermic reactions; the dilution sequence is a fundamental chemical safety rule.

Question 5

Phenolic disinfectants (e.g., Lysol concentrate) are NOT recommended for aluminum implements because they:

Accepted Answer

Can corrode and damage aluminum surfaces

Answer

Phenolic compounds can pit and corrode aluminum and rubber, making them unsuitable for implements made from those materials.

(ABA) American Barber Association Certified Practice Test

(ABA) American Barber Association Certified Practice Test

ABA Sanitation & Disinfection Protocols 3