40 Questions
What type of agents are iodophor and triclosan?
Non-sterilizing agents
At what concentrations are alcohols effective as antiseptics?
60-90%
What is the purpose of glutaraldehyde and ethylene oxide?
Sterilizing medical equipment
What is the main difference between iodophor and tincture of iodine?
Iodophor is a complex of iodine, while tincture of iodine is a solution.
Which of the following is NOT a non-sterilizing agent?
Glutaraldehyde
Which of the following is NOT a type of non-sterilizing agent used in hospitals?
Glutaraldehyde
What is the primary advantage of using iodophor over tincture of iodine?
Iodophor is less irritating to skin
Which of the following is NOT a characteristic of alcohols as antiseptics?
Can be used to sterilize medical equipment
What is the primary use of chlorhexidine in hospitals?
Antiseptic skin preparation
What is the main advantage of using glutaraldehyde over ethylene oxide for sterilizing medical equipment?
There is no significant advantage
What term is used to describe the removal or destruction of all forms of microbial life?
Sterilization
What is the term for the destruction of vegetative pathogens?
Disinfection
What type of treatment is intended to lower microbial counts on eating and drinking utensils to safe public health levels?
Sanitization
What term describes the absence of significant contamination?
Asepsis
What is the goal of disinfection?
To reduce microbial counts to safe levels
What is the main difference between sterilization and disinfection?
Sterilization eliminates all microbial life, while disinfection reduces microbial counts
What is the primary function of the plasma membrane in a cell?
To regulate the exchange of materials
Which of the following is a factor in selecting disinfectants in hospitals?
Presence of organic matter
What is the purpose of sterilization?
To kill all microorganisms
Which method of sterilization uses heat to coagulate proteins?
Moist heat
What is the purpose of direct flaming?
To dry heat sterilize
Which structure is responsible for maintaining cell shape and providing structural support?
Cell wall
Commercial sterilization is a limited heat treatment to destroy which microorganism's endospores?
Clostridium botulinum
What is the typical rate of microbial death when treated with antimicrobial chemicals?
Cells in a population die at a constant rate
MOST disinfectants work better in which type of solutions?
Warm
Damage to which structure causes cellular contents to leak into the surrounding medium?
Plasma membrane
What is the primary mechanism of commercial sterilization?
Heat treatment
What is the purpose of sterilization in infection control?
To reduce the risk of infection transmission
What is the term for the lowest temperature at which all microorganisms in a particular liquid suspension are killed in 10 minutes?
Thermal death point
Which type of heat sterilization involves the use of dry heat?
Dry heat sterilization
What is the purpose of soaps in infection control?
To mechanically remove microbes
Which type of agents injure plasma membranes and were first used by Lister to control surgical infections?
Phenolics
What is the primary mechanism of action of biguanides and quats?
Mechanically removing microbes
Which of the following is a type of sterilization method?
Moist heat sterilization
What is the recommended optimum concentration of ethanol to use as a biocide?
100%
Which of the following includes the cationic detergents?
quats
Which liquid chemical disinfectant is also used for embalming?
glutaraldehyde
What type of liquid chemical sporicide is peracetic acid?
peroxygen
What is the purpose of using glutaraldehyde as a sterilizing agent?
to achieve sterilization of medical equipment
What is the primary advantage of using glutaraldehyde over other sterilizing agents?
it is a sterilizing agent for medical equipment
Study Notes
. Hospital Antiseptics and Disinfectants: - Non-Sterilizing Agents: Iodophor (iodine complex) vs. tincture of iodine, triclosan, chlorhexidine. - Alcohols: Effective at concentrations of 60-90%. - Sterilizing Agents: Glutaraldehyde and ethylene oxide are used for sterilizing medical equipment.
Compare and contrast different types of antiseptics and disinfectants used in hospitals, including iodophors, triclosan, chlorhexidine, and alcohols. Learn about their effectiveness and uses in sterilizing medical equipment.
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