it is note for nursing student

1. Importance of
sterilization
Presented to : DR Rahat
Presented by : Eman Shahid
Subject : clinical microbiology

3. What is sterilization ..?
❑ It is the process of killing all micro-organisms ( bacterial , viral and fungal )
with the use of either physical or chemical agents
❑ Sterilizationis distinct from disinfection , sanitization and pasteurization , in
that those methods reduce rather than eliminate all form of lifeand
biological agents present . After sterilization, an object is referred to as
being sterile and aseptic

4. What to sterilize...?
❑ All instruments that penetrate in bones and soft tissues
❑ Instruments that are not intended to penetrate the tissues , but that may
come into contact with oral tissue
❑ If the sterilizationprocedure may damage the instrument then sterilization
can be replaced by disinfection procedure

5. Methods of sterilization
❑ Steam
❑ Chemicals ( gas )
❑ Plasma
❑ Ionization radiation
❑ Cold chemicals

6. Importance of sterilization
❑ To prevent contamination in sterile products
❑ To prevent transmission of pathogens and micro-organism which are responsible
for causing disease in plants , animals and human beings
❑ To prevent decomposition and spoiling of food and food products
❑ To prevent contamination of unwanted microbes in pure cultures and
other microbiology experiments performed for research studies
❑ To prevent contamination is aseptic areas or instruments which are used for
preparation of sterile dosage forms and sterility testing

7. Importance of sterilizing medical
equipments
 A surgical instrument or medical devicethat comes in contact with a
patient's mucous membranes or sterile tissueand carries a significant risk of
introducing pathogenic microbes, potentially resulting in infection. Lack of
proper sterilization and disinfection of medical equipment increases the risk
of infectiondue to the breach of host barriers. Eliminating blood, mucous,
saliva, pus and foreign particles, or dirt that is left behind which could lead
to dangerous complications for the next patient requiring surgery on whom
the medical practitioner uses the instrument.

8. Benefits of sterilizing medical
equipments
 1. Decreasing pathogenic load -- the number of non-sterilizedbacteria
living on a surface.
 2. Preventing the corrosion of expensive and highly precise tools that have
intricate functional pieces
 3. Removing the breeding ground for the surviving germs.
 4. Ensures the safe transport of equipment which needs to be packed and
assembledfor sterilization or disinfection.
 5. With proper Sterilizationand disinfection, safe use of non-invasive and
invasivemedical devices can be ensured.

9. Summary
 sterilization is vital for maintaining a high level of hygiene and safety,
particularly in healthcare settings where the risk of infection is significant. It
ensures that medical and surgical instruments do not transmit infectious
pathogens to patients.