Infection prevention and control Flashcards Preview

Clinical Pathology > Infection prevention and control > Flashcards

Flashcards in Infection prevention and control Deck (11):
1

What is the chain of infection?

Pathogenic organism -> réservoir -> portal of exit -> mode of transmission -> portal of entry -> susceptible host

'pretty Rober penguin makes pork scratchings'

2

Examples of pathogen elimination

- environmental cleaning and decontamination e.g. H2O2, spillage management, laundry
- Equipment decontamination
- Antisepsis e.g. pre surgical preparation, MRSA decontamination
- Antibiotic prophylaxis

3

Examples of removing source/reservoir

Hand washing
Environmental decontamination

4

Examples of minimising transmission

Hand washing
PPE clothing
Sterilising equipment
Disposable equipment e.g. syringes

5

Examples of preventing entry/exit

Antiseptic e.g. skin prep
Air Handling - filtration and flow
Sharps management
Patient management - minimise use and and duration of invasive devices

6

Examples of reducing susceptibility

Vaccinations
Start smart then focus (reduce susceptibility to C Diff and multi resistant strains)

7

Sterilisation

Complete killing or removal of all types of microorganism

8

Sterilisation methods

Heat - moist/dry
Chemical - gas/liquid
Filtration
Ionisation radiation - for single use disposable

9

Sterilisation by heat - name 2 examples

Autoclave- steam delivery under high pressure (moist)
Oven - controlled temp cycles (dry)

10

Disinfection

Removal or destruction of sufficient potentially harmful microorganisms, making item safe for use

11

Antisepsis

Disinfectant applied to damage skin/living tissue - kills microorganisms with minimum toxicity

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