Disinfection Methods: Thermal vs Chemical
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Questions and Answers

What is the minimum treatment recommended for reprocessing medical devices that cannot be sterilized?

  • Low-level disinfection
  • Decontamination
  • High-level disinfection (correct)
  • Sterilization

    • What is the purpose of drying medical devices after reprocessing?

  • To minimize rusting and staining
  • To reduce the risk of recontamination
  • To facilitate the sterilization process
  • All of the above (correct)

    • What is the recommended method for drying medical devices when a drying cabinet is not available?

  • Place the device in a sterile environment to air dry
  • Dry the device in a horizontal position
  • Use a clean disposable lint-free, absorbent wipe (correct)
  • Use alcohol or other flammable liquids as drying agents

    • What is the minimum treatment recommended for reprocessing non-invasive medical devices for use in non-critical sites?

    <p>Low-level disinfection</p> Signup and view all the answers

    What is the purpose of the process chemicals used in the wash area of the CSSD?

    <p>To affect the cleaning of used surgical devices</p> Signup and view all the answers

    What is the consequence of residual moisture on the sterilization process?

    <p>It interferes with the sterilization process</p> Signup and view all the answers

    What are some hazardous properties that chemicals such as detergents and disinfectants may have?

    <p>Corrosive, flammable, irritant</p> Signup and view all the answers

    What dangerous gas may be released if bleach and ammonia are mixed together?

    <p>Lethal chlorine gas</p> Signup and view all the answers

    According to AAMI, what are some of the minimum characteristics of process chemicals?

    <p>Low-foaming, free-rinsing, biodegradable</p> Signup and view all the answers

    What should be considered when choosing process chemicals for medical devices?

    <p>Compatibility with device, decontamination equipment, intended use</p> Signup and view all the answers

    How should the dosage of process chemicals or detergent be determined?

    <p>By following the manufacturer's instructions and validation during commissioning</p> Signup and view all the answers

    What should be done to control process chemicals in terms of handling and storage?

    <p>Clearly identify chemicals that should not be stored together</p> Signup and view all the answers

    What factors should be considered to ensure water quality is compatible with the cleaning process in a washer-disinfector?

    <p>Ionic contaminants and microbial population</p> Signup and view all the answers

    Which tests are part of the periodic tests for the washer-disinfector after validation?

    <p>Daily spray arm rotation and quarterly safety checks</p> Signup and view all the answers

    What does the presence of heavy metals, phosphates, and silicates in water lead to in the context of the cleaning process?

    <p>Corrosion of medical devices</p> Signup and view all the answers

    Why are routine tests conducted on the decontamination equipment like washer-disinfectors?

    <p>To ensure they are still operating within established limits</p> Signup and view all the answers

    Which action is NOT part of the weekly periodic tests for the washer-disinfector?

    <p>Yearly water hardness check</p> Signup and view all the answers

    What is one of the reasons for cleaning spray nozzles in the washer-disinfector during daily tests?

    <p>To remove calcium deposits</p> Signup and view all the answers

    Which of the following statements about thermal disinfection is correct?

    <p>It is achieved using a thermal washer-disinfector by selecting the appropriate cycle.</p> Signup and view all the answers

    Which of the following factors does NOT affect the effectiveness of chemical disinfection?

    <p>The type of material being disinfected</p> Signup and view all the answers

    What is the primary method of disinfection used in endoscopy units?

    <p>Chemical disinfection</p> Signup and view all the answers

    What is the primary purpose of validating chemical disinfection processes microbiologically?

    <p>To ensure all of the above parameters are met for adequate disinfection</p> Signup and view all the answers

    Which of the following disinfection methods is considered the simplest and most cost-effective?

    <p>Thermal disinfection using a thermal washer-disinfector</p> Signup and view all the answers

    What should be done to ensure the safety of staff who handle chemicals?

    <p>All of the above</p> Signup and view all the answers

    What is the importance of water quality in the cleaning process of reusable medical devices (RMDs)?

    <p>Water quality is critical to the successful outcome of the cleaning process, as it is the last thing to make contact with the RMD</p> Signup and view all the answers

    Which of the following is NOT a factor that influences the cleaning and disinfection process according to the image?

    <p>Temperature of the environment</p> Signup and view all the answers

    What is the purpose of the Safety Data Sheets (SDS) and labels mentioned in the text?

    <p>To ensure appropriate action can be taken in case of exposure to a hazardous substance</p> Signup and view all the answers

    What is the recommended storage height for chemicals according to the text?

    <p>Below shoulder height</p> Signup and view all the answers

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