Podcast
Questions and Answers
What factor plays a crucial role in determining the degree of killing when using disinfectants and sterilants?
What factor plays a crucial role in determining the degree of killing when using disinfectants and sterilants?
- Type of organisms (correct)
- Biofilms
- Presence of organic material
- Nature of surface to be disinfected
Which type of organisms are known to be the most resistant to the actions of heat, chemicals, and radiation?
Which type of organisms are known to be the most resistant to the actions of heat, chemicals, and radiation?
- Prions (correct)
- Mycobacteria
- Bacterial endospores
- Viruses with lipid-rich envelopes
What is a characteristic of mycobacteria that may account for their resistance to chemical and environmental stresses?
What is a characteristic of mycobacteria that may account for their resistance to chemical and environmental stresses?
- Rich in dipicolinic acid
- Rich in lipids (correct)
- Rich in carbohydrates
- Rich in proteins
Which type of disinfectants are more effective against viruses containing lipid-rich envelopes?
Which type of disinfectants are more effective against viruses containing lipid-rich envelopes?
Which factor influences the susceptibility of prions to destruction when using disinfectants?
Which factor influences the susceptibility of prions to destruction when using disinfectants?
What characteristic makes aldehydes such as glutaraldehyde effective as disinfectants?
What characteristic makes aldehydes such as glutaraldehyde effective as disinfectants?
Which type of disinfectant works by reducing the surface tension of molecules in a liquid?
Which type of disinfectant works by reducing the surface tension of molecules in a liquid?
What is the main use of phenolics in disinfection?
What is the main use of phenolics in disinfection?
Why are quaternary ammonium compounds limited to disinfection of noncritical surfaces?
Why are quaternary ammonium compounds limited to disinfection of noncritical surfaces?
Which disinfectant is used in the form of liquid sodium hypochlorite?
Which disinfectant is used in the form of liquid sodium hypochlorite?
What is the characteristic of heavy metals disinfectants that has led to their replacement in clinical applications?
What is the characteristic of heavy metals disinfectants that has led to their replacement in clinical applications?
What is the role of detergents when added to phenol formulations?
What is the role of detergents when added to phenol formulations?
What factor determines the exposure time necessary for 99.9% elimination of microorganisms?
What factor determines the exposure time necessary for 99.9% elimination of microorganisms?
Which factor influences the amount of disinfectant needed to destroy microorganisms?
Which factor influences the amount of disinfectant needed to destroy microorganisms?
How does organic material affect killing activity when disinfecting agents are applied?
How does organic material affect killing activity when disinfecting agents are applied?
What can happen if concentrated disinfectants, like povidone-iodine, are not used correctly?
What can happen if concentrated disinfectants, like povidone-iodine, are not used correctly?
Which type of disinfecting agent is easily inactivated by organic material like blood or mucus?
Which type of disinfecting agent is easily inactivated by organic material like blood or mucus?
Why is it important to follow manufacturers' instructions on preparation, dilution, and use of disinfectants?
Why is it important to follow manufacturers' instructions on preparation, dilution, and use of disinfectants?
