Podcast
Questions and Answers
What is the main mechanism of action of aldehydes such as glutaraldehyde and OPA?
What is the main mechanism of action of aldehydes such as glutaraldehyde and OPA?
- Denaturation of proteins
- Inhibition of DNA, RNA, and other macromolecules (correct)
- Disruption of cell membrane structure
- Binding to nucleic acids
What is the primary advantage of using OPA over glutaraldehyde?
What is the primary advantage of using OPA over glutaraldehyde?
- OPA is more bactericidal
- OPA is more virucidal
- OPA is less toxic (correct)
- OPA is more sporicidal
Which of the following is NOT a characteristic of alcohols?
Which of the following is NOT a characteristic of alcohols?
- Denaturation of proteins
- Inactivation of viruses
- Effective in the absence of water (correct)
- Used for cleaning and disinfection
What is the optimal concentration range for alcohol disinfectants?
What is the optimal concentration range for alcohol disinfectants?
Which of the following microorganisms is killed in 10 seconds by a concentration of 30-100% ethanol?
Which of the following microorganisms is killed in 10 seconds by a concentration of 30-100% ethanol?
What is the primary advantage of using hydrogen peroxide as a disinfectant?
What is the primary advantage of using hydrogen peroxide as a disinfectant?
What percentage of chlorhexidine gluconate is used in high risk applications such as hospital surgical scrubs?
What percentage of chlorhexidine gluconate is used in high risk applications such as hospital surgical scrubs?
What is the spectrum of activity of biguanides against Gram-positive and Gram-negative bacteria?
What is the spectrum of activity of biguanides against Gram-positive and Gram-negative bacteria?
What is a disadvantage of using hypochlorites as disinfectants?
What is a disadvantage of using hypochlorites as disinfectants?
What should cleaning personnel use when handling some disinfectants to prevent occupational exposure?
What should cleaning personnel use when handling some disinfectants to prevent occupational exposure?
What is a type of chlorine compound that is commonly used as a disinfectant?
What is a type of chlorine compound that is commonly used as a disinfectant?
What is the percentage of sodium hypochlorite usually found in household bleach?
What is the percentage of sodium hypochlorite usually found in household bleach?
What is the level of effectiveness against Liphophilic viruses like herpes, vaccinia, and influenza?
What is the level of effectiveness against Liphophilic viruses like herpes, vaccinia, and influenza?
What viruses show variable efficacy against alcohol-based disinfectants?
What viruses show variable efficacy against alcohol-based disinfectants?
What is the main disadvantage associated with repeated use of alcohol-based disinfectants on skin and surfaces?
What is the main disadvantage associated with repeated use of alcohol-based disinfectants on skin and surfaces?
What ligand is contained in Biguanides?
What ligand is contained in Biguanides?
What is a notable advantage of alcohol-based disinfectants for compatibility with skin?
What is a notable advantage of alcohol-based disinfectants for compatibility with skin?
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