this power point is useful to understand the theorical concept of a sterilization & disinfection ,autoclave for nursing students......hope it will be useful for you.
this power point is useful to understand the theorical concept of a sterilization & disinfection ,autoclave for nursing students......hope it will be useful for you.
what is sterilization & disinfectant& decontamination
risk of infection from equipment
process of sterilization, filtration
classification of disinfectant
alcohol,phenol,hydrogen peroxide
Autoclave, types of autoclave, horizontal autoclave, vertical autoclave, vacuum type autoclave, pressure cooker type autoclave. their purpose, precaution, etc....
The above PPT includes different methods of sterilization- Dry heat, Moist heat, Radiation and Chemical methods. It also includes the basic knowledge on sterilization and tests for sterility.
what is sterilization & disinfectant& decontamination
risk of infection from equipment
process of sterilization, filtration
classification of disinfectant
alcohol,phenol,hydrogen peroxide
Autoclave, types of autoclave, horizontal autoclave, vertical autoclave, vacuum type autoclave, pressure cooker type autoclave. their purpose, precaution, etc....
The above PPT includes different methods of sterilization- Dry heat, Moist heat, Radiation and Chemical methods. It also includes the basic knowledge on sterilization and tests for sterility.
An overview of what is happening in the deterioration of the aquatic environment and the consequent adverse impacts on aquatic organisms and how to get rid of petroleum pollutants
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Sterilization and disinfection are both crucial processes for controlling the spread of harmful microorganisms. Sterilization eliminates all forms of microbial life, including bacteria, viruses, and spores, while disinfection reduces the number of pathogenic microorganisms to a level that is considered safe for public health. Sterilization typically involves more rigorous methods, such as heat, chemicals, or radiation, while disinfection can often be achieved with disinfectants like bleach or alcohol.
Killing or removing all forms of microbial life (including endospores) in a material or an object.
Mainly due to: oxidation of cell component, denature proteins, nucleic acids, RNA and loss of membrane permeability.
Procedures performed in a way to prevent contamination with infectious microorganisms
Used to prevent contamination of surgical instruments, medical personnel, and the patient during surgery
Sanitization: Lowering of microbial counts to prevent transmission in public setting (e.g., restaurants & public rest rooms)
Degerming: Mechanical removal of microbes from limited area. e.g., Alcohol swab on skin, washing of hands with soap
Sepsis: Bacterial contamination
Antisepsis: Reduction or Inhibition of microbes found on LIVING TISSUE
39. Good Hand Washing Practices Save many Lives Soap, Water and common sense are yet the best antiseptics William Osler
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41. Physical Antimicrobials Used for sterilizing medical supplies DNA damage Radiation, X-rays Line-drying laundry Strong vis. Light Limited penetration DNA damage (thymine dimers) Radiation, UV Used in food preservation (less effective against fungi) Plasmolysis of contaminants Osmotic Pressure, Addition of salt or sugar Bacteriostatic Decreased chemical reaction rate Cold, Refrigeration Used for food & drug preservation; Does not necessarily kill so used for Long-term storage of bacterial cultures Desiccation and low temperature Cold, Lyophilization (also desiccation) Used for heat sensitive liquids Separation of bacteria from liquid (HEPA: from air) Filtration 170°C for 2 hours ; Used for glassware & instrument sterilization Oxidation & Denatures proteins Dry Heat, Hot air oven Used for inoculating loop Incineration of contaminants Dry Heat, Flaming Kills pathogens in food products Denatures proteins Moist Heat, Pasteurization 121°C at 15 p.s.i. for 30 min k ills everything Denatures proteins Moist Heat, Autoclaving Kills vegetative bacterial cells and viruses Endospores survive Denatures proteins Moist Heat, boiling Comments Mechanisms of Action Agent
42. Chemical Antimicrobials * Type of Disinfectant: H = High level; I = Intermediate level; L = Low level
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