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Related Concept Videos

Cleaning, Sterilization, and Disinfection01:30

Cleaning, Sterilization, and Disinfection

Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
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Asepsis is the practice of preventing or breaking the chain of infection. The nurse employs aseptic techniques to prevent the spread of microorganisms and reduce the risk of diseases. Hand hygiene is the cornerstone of aseptic techniques and is classified into medical and surgical asepsis. Medical asepsis includes hand hygiene and the use of gloves. Surgical asepsis, or the sterile technique, refers to practices that render and keep objects and areas free of microorganisms.
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Methods of Sterilization II: Chemical Methods

In healthcare, the chemical method of sterilization uses chemical sterilants to treat surgical instruments and medical supplies to help prevent the transmission of infectious pathogens to patients. Due to heat sensitivity, most medical supplies and equipment should not be exposed to high temperatures. These parts include rubber, plastic, glass, and other similar elements.
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Transmission-based precautions are for patients known to be infected or suspected to be infected or colonized with organisms that pose a significant risk to others. Some transmission-based precautions include contact, enteric, and droplet.
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Related Experiment Video

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[Disinfecting contact tonometers - a systematic review].

A S Neubauer1, P Heeg, A Kampik

  • 1Augenklinik, Ludwig-Maximilians-Universität, München. aljoscha.neubauer@med.unimuenchen.de

Klinische Monatsblatter Fur Augenheilkunde
|June 10, 2009
PubMed
Summary

Disinfecting contact Goldmann tonometers is crucial for preventing infections. Chlorine-based and hydrogen peroxide-based liquid disinfectants are effective and safe when used for 5 minutes.

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Area of Science:

  • Ophthalmology
  • Infectious Disease Prevention
  • Medical Device Sterilization

Background:

  • Contact Goldmann tonometers are essential for intraocular pressure measurement.
  • Inadequate disinfection poses a risk of microbial transmission.
  • Evidence-based guidelines for tonometer disinfection are needed.

Purpose of the Study:

  • To systematically review the evidence on effective disinfection methods for contact Goldmann tonometers.
  • To identify safe and reliable disinfection protocols.

Main Methods:

  • Systematic review of articles published up to July 2008.
  • Searches conducted in Medline, Embase, and reference lists.
  • Data retrieval and assessment by two independent observers.

Main Results:

  • 89 articles were retrieved; 58 were included in the review.
  • Experimental studies showed chlorine-based and hydrogen peroxide-based disinfectants (5-minute application) are effective.
  • Alcohol wipes and UV disinfection showed inconsistent efficacy and potential material damage.

Conclusions:

  • Liquid disinfection using chlorine-based or hydrogen peroxide-based solutions for 5 minutes is effective and safe.
  • These methods align with current US guidelines and expert recommendations.
  • Further research may be needed to address inconsistent findings for other disinfection methods.