L13_Sterilization, Disinfection, and Antisepsis Flashcards Preview

Microbiology > L13_Sterilization, Disinfection, and Antisepsis > Flashcards

Flashcards in L13_Sterilization, Disinfection, and Antisepsis Deck (15):
1

What is the difference between disinfection and sterilization?

Disinfection-does not necessarily kill all microorganisms (spores)
Sterilization-Kills all forms of microbial life

2

What does antisepsis refer to?

the reduction of microorganisms on living tissue/skin. Antiseptics do not kill spores and cannot be used as disinfectants

3

What type of treatment should critical items receive in between use?

Items that enter normally sterile parts of the body should preferably be sterilized in between uses

4

What type of treatment should semi-critical items receive?

Item that come into contact with mucous membranes or non-intact skin should be treated with a high level disinfectant (endoscopes)

5

what is a type of sterilization used in the OR that allows for rapid sterilization of dropped equipment?

Flash Sterilization - 270 F at 27-28psi for 3 min

6

Is pasteurization a sterilization technique?

No

7

What is irradiation treatment generally used for?

Blood products and food

8

Of the following, which can be used on living tissue: Alcohols, formaldehyde, iodophors, gluteraldehyde, hydrogen peroxide, phenols and phenolics, Quaternary ammonium compounds, ethylene oxide, triclosan, heavy metals, peracetic acid, plasma sterilization, phenolic derivatives, chlorohexidine

Alcohols, chlorohexidine, iodophors, hydrogen peroxide, triclosan, heavy metals, phenolic derivatives

9

What is hexachlorophene used for?

staphylococcal skin decolonization before surgery

10

What is chlorohexidine used for?

Skin antisepsis

11

What is the only liquid chemical disinfectant that can be considered a sterilant?

Cidex (aldehydes)

12

What is the general use for Quats

surface decontamination (floors, walls, equipment wipedown) (also found in toothpaste)

13

Are hand sanitizer effective when hands are visibly dirty?

No

14

What is the main advantage of hydrogen peroxide

gets dirty and debris out of wound, doesnt do a great job of actually killing.

15

What does the STERAD sterilization system employ?

Hydrogen peroxide plasma, can be used in OR for quick instrument processing for devices without lumen.