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Questions and Answers
Which of the following is true about disinfectants?
Which of the following is true about disinfectants?
- They are used to control micro-organisms on living surfaces
- They are milder than antiseptics
- They are used to control micro-organisms on non-living surfaces (correct)
- They are used to remove debris and oil residue
What is the difference between sanitation and sterilization?
What is the difference between sanitation and sterilization?
- Sanitation destroys all living micro-organisms, while sterilization destroys some but not all micro-organisms (correct)
- Sanitation is used to control micro-organisms on non-living surfaces, while sterilization is used to promote public health
- Sanitation is milder than sterilization
- Sanitation and sterilization are the same thing
What is the process for preparing metal implements for sterilization?
What is the process for preparing metal implements for sterilization?
- Soaking in hot, soapy water and wiping dry
- Placing in a dry sterilizer without any preparation
- Saturating with disinfectant solution and wiping entire surface area
- Soaking in 70% to 90% alcohol solution for 20 minutes, wiping dry, and placing in a dry sterilizer (correct)
Antiseptics are stronger than disinfectants.
Antiseptics are stronger than disinfectants.
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Sanitization is the process of destroying all micro-organisms.
Sanitization is the process of destroying all micro-organisms.
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Disinfectants can be used on living surfaces such as skin.
Disinfectants can be used on living surfaces such as skin.
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Study Notes
Disinfectants
- Disinfectants are chemical agents used to eliminate microorganisms on inanimate surfaces.
- They are used in various settings, including medical facilities and households, to maintain hygiene.
Sanitation vs. Sterilization
- Sanitation refers to the reduction of the number of microorganisms to safe levels, while sterilization is the complete destruction of all forms of microorganisms.
- Sanitization is generally achieved through cleaning methods and disinfection, not through complete microbial elimination.
Preparation of Metal Implements for Sterilization
- Metal instruments must be thoroughly cleaned to remove dirt, blood, and organic material before sterilization.
- They can be sterilized using methods such as autoclaving, which involves steam under pressure, or using chemical sterilants.
Antiseptics vs. Disinfectants
- Antiseptics are chemical substances designed for use on living tissues to reduce the risk of infection, while disinfectants are formulated for surfaces.
- Antiseptics are usually milder than disinfectants and are not typically stronger; rather, they serve different purposes.
Misconceptions about Sanitization
- Sanitization does not imply the elimination of all microorganisms; it focuses on reducing pathogens to safe levels.
Disinfectants and Living Surfaces
- Disinfectants are generally not safe for use on living tissues like skin; using them on such surfaces may cause irritation or damage.
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