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BDS3 BAMS > Patient Safety - Decontamination > Flashcards

Patient Safety - Decontamination Flashcards

1
Q

What is the definition of sterilisation?

A

The process of making something free from bacteria or other living organisms

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2
Q

What does manual cleaning do that sterilisation cannot do?

A

Sterilised does not have the ability to remove proteins or prions from instruments - must be removed at manual cleaning stage.

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3
Q

What are disadvantages of manual cleaning?

A

Member of staff is required to be present entire time
Risk of aerosol production
Risk of contaminating surrounding environment
Potential risk of inconsistency due to human error
Risk of sharps injuries

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4
Q

What are the 4 parts of the sinner circle?

A

Time
Temperature
Chemistry
Mechanics

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5
Q

When should manual cleaning be carried out?

A

When
Manufacturers guidelines specify
WD broken or in use
WD has not removed contamination

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6
Q
  • What are the 5 stages of the water-disinfector and the temperature for eacg? *
A

FLUSH/ PREWASH - <35
MAIN WASH - temperature dependent on chemical used for process
RINSE - <65
THERMAL DISINFECTION - 90-95 for min 1 minute
DRYING - 100 (variable)

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7
Q

What happens in the Flush/ prewash stage of the WD?

A

Saturates the contamination and removes gross contamination

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8
Q

What happens in the main wash of the WD?

A

Supplemented by detergent to more effectively remove biological matter

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9
Q

What happens in the rinse stage of WD?

A

Removes the remaining residue, biological or chemical before disinfection

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10
Q

What happens in the thermal disinfection stage of WD?

A

Actively kills micro-organisms with the use of heated water

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11
Q

What happens in the drying stage of the WD?

A

This stage uses hot air to remove any remaining moisture from the surface of the instruments.

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12
Q

What is critical spaulding classification and examples?

A

Critical - instruments that could enter tissue or the vascular system - probe, scalers, needles

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13
Q

What types of instruments can you process through a Type N steriliser?

A

Rigid steel/ solid instrumentation with no pockets channels or lumens.
e.g. dental mirror, probe

Cannot process wrapped instruments, handpieces or ultrasonic scalers

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14
Q

What types of instruments can you process through a Type B steriliser?

A

CAN process wrapped instruments as steam can penetrate wrappings

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15
Q

What types of instruments can you process through a Type S steriliser?

A

Washes, lubricates and sterilises hand pieces.

Cannot process wrapped instruments

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16
Q

What is a daily test you can carry out on the sterilisers?

A

The bowie dick test - steam penetration
Drain steriliser reservoirs daily

17
Q

What is a weekly test you can carry out on the sterilisers?

A

Air leakage test
Air detector function test (ADFT)

18
Q

What are the stages in life/ processing cycle?

A

Cleaning
Disinfection
Inspection
Packaging
Sterilisation
Transport
Storage
Use
Transport

19
Q

What guidance should be followed for cleaning and disinfection and steam sterilisation respectively?

A

Cleaning and disinfection - SHTM01-01 part D
Steam sterilisation - SHTM01-01 part C

20
Q

How long are decon records kept?

A

13 years

21
Q

Stages of the daily WD test?

A

Check spray arms rotate and jets are free from blockages
Check filter/ strainer for debris contamination or instruments
Check door seal for damage and cleanliness
Verify condition of load carrier
Record disinfection temperature of first cycle

22
Q

What is semi-critical spaulding classification?

A

instruments that could contact mucosa but not pierce - dental mirror, impression trays

23
Q

What is non-critical spaulding classification?

A

Non-critical - comes in to contact with intact skin only - x-ray cone

24
Q

Types of water you can use

A

Reverse osmosis
Sterile
Distilled
De-ionised

25
Q

4 bits of info from first production of the day steriliser

A

Cycle number
Sterilisation hold time
Temperature
Pressure

26
Q

Name 4 key personnel and their roles in decon

A

Manager - responsible for LDU
Operator - uses equipment, maintenance
Test person - conduct and report on validation and periodic test must have 2 years experience
Authorising engineer (decon) - free NHS scotland service, advises on validation, maintenance and testing

BDS3 BAMS (5 decks)

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