Sterilization and Disinfection Quiz
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Sterilization and Disinfection Quiz

Test your knowledge about sterilization and disinfection processes. This quiz covers the definitions, methods, and importance of sterilization and disinfection in preventing the spread of microorganisms.

Created by
@MonumentalWerewolf

Questions and Answers

What is the primary objective of sterilization?

To eliminate all microorganisms, including spores, with the highest level of certainty

What distinguishes a sterile object from a non-sterile one?

It has been subjected to a sterilization process and packaged to be contamination-proof

Which method is used in aseptic measures to fight pathogens in or on living tissue?

Strong disinfectants in gas form

What is the main purpose of the disinfection procedure?

<p>To render an object incapable of spreading infection</p> Signup and view all the answers

What is the main use of gashouse chemicals like formaldehyde and ethylene oxide?

<p>Disinfecting surgical theaters and filling equipment</p> Signup and view all the answers

Which method is used to sterilize heat-sensitive pharmaceuticals?

<p>Filtration sterilization</p> Signup and view all the answers

What is the main advantage of ultrafine filters in filtration sterilization?

<p>They filter out viruses and large molecules as well</p> Signup and view all the answers

Which type of radiation consists of electromagnetic waves produced by nuclear disintegration?

<p>Gamma radiation</p> Signup and view all the answers

Which type of alcohol is quite effective against bacteria and fungi, but less so against viruses?

<p>Propanol (60 %)</p> Signup and view all the answers

Which halogen is suitable for use as a disinfectant and shows a generalized microbicidal effect, including killing spores?

<p>Chlorine</p> Signup and view all the answers

Which of the following substances is used as a mild antiseptic to disinfect mucosa, skin, or wounds based on relevant chemical activity involving the splitting off of oxygen?

<p>Peracetic acid</p> Signup and view all the answers

What is one advantage of surfactants as disinfectants?

<p>Moderate bactericidal effect</p> Signup and view all the answers

Study Notes

Sterilization and Disinfection

  • The primary objective of sterilization is to completely eliminate all microorganisms from an object or surface.
  • A sterile object is distinguished from a non-sterile one by the complete absence of all microorganisms, including bacterial spores.

Aseptic Measures

  • In aseptic measures, the method used to fight pathogens in or on living tissue is antimicrobial chemotherapy.

Disinfection

  • The main purpose of the disinfection procedure is to reduce the number of microorganisms on an object or surface to a level that is considered safe.

Gaseous Chemicals

  • Gashouse chemicals like formaldehyde and ethylene oxide are used to sterilize heat-sensitive pharmaceuticals.

Filtration Sterilization

  • The method used to sterilize heat-sensitive pharmaceuticals is filtration sterilization using ultrafine filters.
  • One advantage of ultrafine filters in filtration sterilization is that they can remove very small particles and microorganisms from liquids.

Radiation Sterilization

  • Ionizing radiation, which consists of electromagnetic waves produced by nuclear disintegration, is used to sterilize certain objects.

Disinfectants

  • Isopropyl alcohol is quite effective against bacteria and fungi, but less so against viruses.
  • Iodine is a halogen suitable for use as a disinfectant, showing a generalized microbicidal effect, including killing spores.
  • Hydrogen peroxide is used as a mild antiseptic to disinfect mucosa, skin, or wounds, based on its chemical activity involving the splitting off of oxygen.
  • One advantage of surfactants as disinfectants is their ability to reduce surface tension, making it easier to clean surfaces.

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