Surgery - Sterilization And Disinfection

Front 1

Definition of Disinfection Vs sterilization

Back 1

Sterilisation is the process of killing microorganisms and thier spores

Disinfection is the killing of microorganisms not including their spores

Front 2

List methods of sterilization

Back 2

Use of Heat

Use of Radiation

Use of chemicals

Front 3

........ Is The most common method Of sterilization

Back 3

The use of heat

Front 4

......... and....... determines effectiveness Of heat sterilization

Back 4

Temperature and duration determines effectiveness

Front 5

Heat sterilization methods is divided into ?

Back 5

moist heat and dry heat

Front 6

Methods of moist heat sterilization include

Back 6

Boiling

Pasteurisation

Autoclaving

Front 7

Discuss

BoilingPasteurisationAutoclavingMethod of sterilization

Back 7

1. Boiliing is used for metallic devices like scissors, scalpel and needles.

2. Pasteurisation is the process of heating milk at a temperature of 60 degrees or 72 degrees 3 to 4 times.

3.

*Substances are subjected to sterilization in an autoclave which is a steam sterilization equipment

* The process carried out at a temperature of 115 degrees for 65 mins or 121 degrees for 20 mins.

*Saturated steam is formed at the boiling temperature of water, the steam condenses on the material and relieves the lateral heat to convert back to water

*The saturated steam under low pressure penetrates all the narrow spaces leaving no microorganism alive.

*It is the most common method used

Front 8

Temperature for autoclave is?

Back 8

115°c in 65 minutes

121°c in 20 minutes

Front 9

Dry heat methods include

Back 9

1. Flaming

2. Hot air oven

3. Incineration

4.

Front 10

....... Is

1. Effective against bacteria and enveloped virus

2. Not effective against Non enveloped viruses and spores

Back 10

PHENOLS – an Active ingredient in many household disinfectants

Front 11

..... Is active against vegetative bacteria, fungi and enveloped viruses.

How is it used?

Back 11

Alcohol.

Usually used as 60 – 90% solution.

Front 12

The most common product of hypochlorite is?

Back 12

4-6% Sodium hypochlorite which is the household bleach.

Front 13

What can hypochlorite do

Back 13

Can eliminate both enveloped and non-enveloped viruses when used with right concentration and contact time.

Effective against vegetative bacteria

Front 14

POVIDONE IODINE Contains ?

Back 14

Contains complex of polyvinylpyrolidone and elemental iodine. It contains12% iodine