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Questions and Answers
Which of the following best describes a sterilant?
Which of the following best describes a sterilant?
- A chemical agent with low toxicity for host cells used on animate surfaces
- A chemical agent that kills microorganisms on inanimate surfaces
- A method of disinfection that kills both vegetative cells and spores (correct)
- A physical procedure that inhibits or kills microorganisms on inanimate surfaces
What is the main difference between a disinfectant and an antiseptic?
What is the main difference between a disinfectant and an antiseptic?
- Disinfectants are chemical agents, while antiseptics are physical procedures
- Disinfectants are used on inanimate surfaces, while antiseptics are used on animate surfaces (correct)
- Disinfectants kill both vegetative cells and spores, while antiseptics only kill vegetative cells
- Disinfectants have low toxicity for host cells, while antiseptics have high toxicity for host cells
Which of the following can be considered a method of disinfection?
Which of the following can be considered a method of disinfection?
- Autoclaving materials at appropriate times and temperature
- Applying Neosporin® to a cut on the skin
- Using UV radiation to kill microorganisms
- Spraying a surface with 70% ethanol (correct)
What is the primary use of an antiseptic?
What is the primary use of an antiseptic?
Which of the following is an example of a disinfectant?
Which of the following is an example of a disinfectant?
Which method of sterilization uses ethylene oxide or formaldehyde gases?
Which method of sterilization uses ethylene oxide or formaldehyde gases?
Which method of sterilization is suitable for organic compounds that would degrade under high temperatures?
Which method of sterilization is suitable for organic compounds that would degrade under high temperatures?
Which method is recommended for items that cannot be sterilized or are noncritical items?
Which method is recommended for items that cannot be sterilized or are noncritical items?
What are the microorganisms of concern in dental unit waterlines?
What are the microorganisms of concern in dental unit waterlines?
Which of the following is a primary source of microorganisms in dental unit waterlines?
Which of the following is a primary source of microorganisms in dental unit waterlines?
How long should water and air be discharged after each patient from any device connected to the dental water system?
How long should water and air be discharged after each patient from any device connected to the dental water system?
Which agency regulates disinfectants and sterilants?
Which agency regulates disinfectants and sterilants?
Which agency regulates antiseptics?
Which agency regulates antiseptics?
What are the ideal properties of a disinfectant?
What are the ideal properties of a disinfectant?
What are the ideal properties of an antiseptic?
What are the ideal properties of an antiseptic?
What can be done to test the water quality in dental units?
What can be done to test the water quality in dental units?
Which of the following is NOT an ideal property of a disinfectant?
Which of the following is NOT an ideal property of a disinfectant?
Which agency is responsible for regulating antiseptics?
Which agency is responsible for regulating antiseptics?
Which of the following is NOT an ideal property of a disinfectant?
Which of the following is NOT an ideal property of a disinfectant?
Which of the following is an ideal property of an antiseptic?
Which of the following is an ideal property of an antiseptic?
Which of the following is an ideal property of an antiseptic?
Which of the following is an ideal property of an antiseptic?
What is the recommended concentration for disinfection of blood spills with sodium hypochlorite?
What is the recommended concentration for disinfection of blood spills with sodium hypochlorite?
Which of the following is a characteristic of iodine as an antiseptic?
Which of the following is a characteristic of iodine as an antiseptic?
Which method is recommended for disinfection or sterilization of instruments especially those that cannot withstand high temperatures?
Which method is recommended for disinfection or sterilization of instruments especially those that cannot withstand high temperatures?
Which of the following is a potential side effect of using iodine as an antiseptic?
Which of the following is a potential side effect of using iodine as an antiseptic?
What is the recommended dilution for sodium hypochlorite as a disinfectant?
What is the recommended dilution for sodium hypochlorite as a disinfectant?
Which of the following materials are bleach solutions corrosive to?
Which of the following materials are bleach solutions corrosive to?
What is the primary function of halogens and halogen-releasing compounds as antiseptics?
What is the primary function of halogens and halogen-releasing compounds as antiseptics?
What is the main function of superoxidized water as a disinfectant?
What is the main function of superoxidized water as a disinfectant?
What can accelerate the decomposition rate of chlorine in superoxidized water?
What can accelerate the decomposition rate of chlorine in superoxidized water?
What is the contact time required for achieving a high level of disinfection with superoxidized water?
What is the contact time required for achieving a high level of disinfection with superoxidized water?
Which compound forms crosslinks in proteins and nucleic acids, and can act in alkylation of proteins?
Which compound forms crosslinks in proteins and nucleic acids, and can act in alkylation of proteins?
What is the recommended use of superoxidized water in dental settings?
What is the recommended use of superoxidized water in dental settings?
What can cause failures of disinfection with aldehydes?
What can cause failures of disinfection with aldehydes?
What is the stability period of superoxidized water when stored correctly?
What is the stability period of superoxidized water when stored correctly?
Which of the following is NOT a recommended use of alcohol-based hand rubs?
Which of the following is NOT a recommended use of alcohol-based hand rubs?
What is the recommended method to increase penetration of aldehydes into devices for disinfection?
What is the recommended method to increase penetration of aldehydes into devices for disinfection?
Which compound is a bisphenol and has been used in toothpastes and soaps?
Which compound is a bisphenol and has been used in toothpastes and soaps?
Which of the following is a phenolic-related compound still used as a disinfectant?
Which of the following is a phenolic-related compound still used as a disinfectant?
What is the primary use of aldehydes as disinfectants or sterilants?
What is the primary use of aldehydes as disinfectants or sterilants?
Which of the following compounds can disrupt cell walls and membranes, denature and inactivate enzymes?
Which of the following compounds can disrupt cell walls and membranes, denature and inactivate enzymes?
Which compound has corrosive effects on the tissues, high toxicity through the skin, and has carcinogenic effects?
Which compound has corrosive effects on the tissues, high toxicity through the skin, and has carcinogenic effects?
Which of the following is a recommended concentration for alcohol-based hand rubs?
Which of the following is a recommended concentration for alcohol-based hand rubs?
Which of the following compounds is derived from coal tar distillates and is used in Lysol?
Which of the following compounds is derived from coal tar distillates and is used in Lysol?
Which of the following is true about hydrogen peroxide (H2O2)?
Which of the following is true about hydrogen peroxide (H2O2)?
Which of the following is NOT a recommended method for disinfection or sterilization of instruments?
Which of the following is NOT a recommended method for disinfection or sterilization of instruments?
Which of the following is a property of alcohols as antiseptics and disinfectants?
Which of the following is a property of alcohols as antiseptics and disinfectants?
Which of the following is true about alcohol-based hand rubs and C. difficile spores?
Which of the following is true about alcohol-based hand rubs and C. difficile spores?
Which of the following compounds should not be used in nurseries or near infants due to an association with hyperbilirubinemia?
Which of the following compounds should not be used in nurseries or near infants due to an association with hyperbilirubinemia?
Which of the following is true about the activity of hydrogen peroxide (H2O2) on bacteria?
Which of the following is true about the activity of hydrogen peroxide (H2O2) on bacteria?
Which of the following is true about the mechanism of action of hydrogen peroxide (H2O2) on bacteria?
Which of the following is true about the mechanism of action of hydrogen peroxide (H2O2) on bacteria?
Which of the following is true about the activity of biguanides?
Which of the following is true about the activity of biguanides?
Which of the following is true about the preferred agent for skin antisepsis in many surgical procedures?
Which of the following is true about the preferred agent for skin antisepsis in many surgical procedures?
Which of the following is true about the binding of chlorhexidine to bacterial cell walls?
Which of the following is true about the binding of chlorhexidine to bacterial cell walls?
Which of the following is true about the use of biguanides in mouthwash?
Which of the following is true about the use of biguanides in mouthwash?
Which of the following is true about the activity of chlorhexidine?
Which of the following is true about the activity of chlorhexidine?
Which of the following is true about the combination of chlorhexidine and alcohol?
Which of the following is true about the combination of chlorhexidine and alcohol?
Which plant extract is used as a local anesthetic and has counterirritant qualities?
Which plant extract is used as a local anesthetic and has counterirritant qualities?
What is the mechanism of action of heavy metals like mercury and silver as disinfectants?
What is the mechanism of action of heavy metals like mercury and silver as disinfectants?
Which compound is used as a preservative in certain vaccines, antitoxins, and immune sera?
Which compound is used as a preservative in certain vaccines, antitoxins, and immune sera?
Which surfactant classification includes items such as soaps and detergents?
Which surfactant classification includes items such as soaps and detergents?
What happens when cationic and anionic surfactants are mixed together?
What happens when cationic and anionic surfactants are mixed together?
What is the mechanism of action for surfactants as disinfectants?
What is the mechanism of action for surfactants as disinfectants?
What classification does cetylpyridium chloride belong to?
What classification does cetylpyridium chloride belong to?
What is the primary source of eucalyptol?
What is the primary source of eucalyptol?
What is the role of monoterpenes in plant oils?
What is the role of monoterpenes in plant oils?
Which of the following is the primary use of silver nitrate in newborns?
Which of the following is the primary use of silver nitrate in newborns?
What can limit the efficacy of disinfectants and antiseptics?
What can limit the efficacy of disinfectants and antiseptics?
What is an example of an intrinsic bacterial resistance mechanism?
What is an example of an intrinsic bacterial resistance mechanism?
What is an example of an acquired bacterial resistance mechanism?
What is an example of an acquired bacterial resistance mechanism?
What can help improve the overall efficacy of disinfectants and antiseptics?
What can help improve the overall efficacy of disinfectants and antiseptics?
What is the primary use of silver sulfadiazine?
What is the primary use of silver sulfadiazine?
What are the ideal properties of a disinfectant or antiseptic?
What are the ideal properties of a disinfectant or antiseptic?
What can microbes develop resistance to?
What can microbes develop resistance to?
What determines the use of a disinfectant or antiseptic?
What determines the use of a disinfectant or antiseptic?
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