sterilisation is a series of processes that effectively remove or destroy infectious agents or other contaminants (e.g. organic matter) in order to prevent the spread of infection.

The three processes are:

 

  • Cleaning
  • Enhanced cleaning
  • Disinfection

 

Cleaning may be either manual or automated.

How successful the cleaning is in terms of reducing microbial contamination depends on various factors including:

 

  • The effectiveness of the cleaning process
  • The amount of bioburden (soil) present

Cleaning:

The cleaning process is generally suitable for items that are not in direct contact with the patient and medical equipment that are in contact with the patient’s skin.

Enhanced cleaning:

Enhanced cleaning refers to methods used in addition to standard cleaning, and is carried out in response to a specific infection prevention and control requirement.

This process may involve increased frequency of cleaning, either for all surfaces or of those that are frequently touched, or it may involve the use of additional cleaning equipment or disinfectants.

Disinfection:

Manual disinfection can help to reduce the number of viable infectious agents in the healthcare environment, but it isn’t always sufficient on its own to inactive certain microbes, such as viruses and spores.

In some cases, the use of a specific concentration of a chemical agent may be required.

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