Patient safety

Question 1

What is the spaulding classification split into

Answer 1

critical
semi critical
non critical

Question 2

What is the definition of critical

Answer 2

devices that enter tissue that is usually sterile or enters the vascular system - need instruments to be STERILE

Question 3

What is the defition of semi critical

Answer 3

Instruments have contact with intact mucus membranes but does not penetrate sterile tissue - Want instruments to be STERILE preferably or use a high level disinfectant (however these have no role in general dental practice)

Question 4

What is non critical defition

Question 5

What is non critical defition

Answer 5

Instruments have contact with intact skin only - Want to clean or disinfect instruments

Question 6

Why do we need sterile instruments

Answer 6

Reduces the probability of infection transmission
International standard for surgical instruments that we must adhere to
Legislative and professional standards
Maintaining high quality care for patients

Question 7

What is the definition of sterile

Answer 7

For a terminally-sterilised medical device to be designated ‘sterile’, the theoretical probability of their being a viable microorganism present on/in the device should be equal or less than 1x10-6

Question 8

What is the definition of sterilised

Answer 8

This would suggest that something is not sterile at the point of use. An instrument may have been subject to a sterilisation process but without proper handling and management may no longer be sterile at the point it will be used for a procedure

Question 9

What are the critical steps for the decontamination cycle

Answer 9

Storage 
Use 
Transport
Cleaning 
Disinfection 
Inspection
Packaging
Sterilisation 
Transport 
Storage

Question 10

What is cleaning

Answer 10

Cleaning will remove any biological matter, bodily fluids, proteins (with specific relation to prion vCJD) or infectious substances, and also, reduce the amount of microbial presence

Question 11

What is disinfection

Answer 11

Disinfection is the first part of the decontamination cycle where we are actively targeting microbial presence and reducing the amount on the surface of our instrument. It is carried out using heat

Question 12

What is the sinners cycle

Answer 12

Chemicals
Temperature
Energy
Time

Question 13

What stages of disinfecting can we use tap water

Answer 13

manual cleaning
ultrasonic
washer disinfector

Question 14

What stages require pure water

Answer 14

steam sterilisation

Question 15

What temp and time for thermal disinfection

Answer 15

90 - 95

1 min

Question 16

What temp and time for steam sterilisation

Answer 16

134 - 136

3 min

Question 17

5 stages of automatic washer disinfector

Answer 17

pre wash
main wash
rinse
thermal disinfection
drying