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Flashcards in Decon BDS5 Deck (21)
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1
Q

What are the stages of the decontamination cycle?

A
  1. Acquisition - practices should have a documented policy for the purchase of any medical devices
  2. Cleaning - Automated cleaning is preferred to manual cleaning
  3. Disinfection - Reduce number of viable microorganisms
  4. Inspection - All instruments carefully examined for organic material and/or damage under magnification
  5. Packaging - Where products are to be packaged, the materials should be. Compliant with the relevant European Standards (BS EN 868)
  6. Sterilisation - The following should be taken into account; process used, type of cycle and relevant cycle parameters
  7. Transport
  8. Storage - Areas designated for storage should be clean, dry, well ventilated and secure. Stock rotation should be used FIFO.
  9. Use
  10. Transportation (dirty)
  11. Disposal
2
Q

The location for decontamination processes may be divided into what three areas?

A

Dirty - cleaning of used devices

Clean - inspection, assembly and packaging

Clean - sterilisation and post sterilisation storage

3
Q

What are the three main sources of contamination of a product prior to its sterilisation?

A

Facilities

Personnel

Raw materials/components

4
Q

Who has the overall responsibility of the decontamination process?

A

Dental Practitioner/Owner (maybe referred to as the decontamination manager)

Practitioner must have undertaken periodic training to update their knowledge, skills and competence

5
Q

What are policies?
When should policies be available for the decon process?

What are procedures?
How are procedures relevant to the decon process?

A

Policies describe the aim of a particular process
Should be available for all parts of the decon cycle including acquisition and disposal

Procedures describe how to achieve compliance with a policy
They should define, document and control all stages of the decon process

6
Q

Who is the operator, user and manager in the decon process?

What are their roles?

A

Operator;
Defined as the person with the authority to operate a washer disinfector and steriliser
Can note readings, replace consumables and perform simple housekeeping duties

User;
Defined as the person designated by the practice owner/manager who is responsible for the decon equipment
Can certify equipment is fit for use
Holds all documentation
Ensures periodic testing and maintenance takes place
Can appoint operators
Can establish procedures

Manager;
Defined as the owner, employer, dental practitioner or practice manger who is ultimately acountable for operation of the dental premises
Ensures decon is carried out in compliance with the policies of the UK health departments and law
Ensures staff are trained
Ensures that purchased equipment complies to legal requirements and standards
Ensure that equipment is subject to periodic testing
Ensures procedures are documented and adhered to

7
Q

Who is the authorising engineer in the decon process?

A

The AE(D) is defined as the person designated by HFS to advise on decontamination procedures, washer disinfector, sterilisers and associated sterilisation procedures

Principal responsibilities;
Give general and impartial advice on all matters concerned with decon
To audit reports
To advise staff on programmes of periodic tests and maintenance

8
Q

Who is the competent person for decontamination - what are their responsibilities?

Who is the competent person for pressure systems - what are their responsibilities?

A

CP(D) is defined as the person designated to carry out maintenance, validation and periodic testing of washer disinfectors and sterilisers
Responsibilities are;
Carry out maintenance and repair tasks
Conduct validation and periodic tests

CP(PS) is defined in the pressure systems safety regulation 2000 as the engineer responsible for drawing up a written scheme of examination of a system e.g. porous load sterilisers

9
Q

Define guidelines, standards and legislation

A

Guidelines;
Recommendations for the care of individuals by healthcare professionals based on the best available evidence

Standards;
A document established by consensus and approved by a recognised body…

Legislation;
Process of enacting statutory laws

10
Q

What mark should decon devices bear?

What is the NP 143 contract? How often does it get updated?

A

CE mark

This is a NHS procurement (acquisition) department which is available to all general dental practices in Scotland who are contracted to the NHS
It is updated every 3 years
The advantage is that items from this contract are NHS approved and independently tested by the NHS

11
Q

What are the key elements of the cleaning cycle?

A

Time

Temperature;
The temp of the initial wash is usually below 40 degrees to avoid coagulation and fixing of body tissues to instruments

Chemicals;
Acidic detergents
Neutral pH detergents 
Alkaline detergents pH 10
High alkaline detergents >pH10 
Enzymatic detergents 

Energy;
This is usually delivered in the form of physical energy in the water jets from the rotating spray arms.

12
Q

What is the preferred back up cleaning method if an AWD is unavailable?

What is its documented procedure?

A

Ultrasonic cleaner

Correct loading procedure
Correct choice of operating cycle time 
Operating temp
Correct choice of detergent
Draining of ultrasonic bath at 4 hourly intervals or sooner if grossly contaminated 
Record details of items processed
13
Q

What does a typical washer disinfector cycle compromise of?

A
  1. Flush - remove gross contamination at <35 degrees
  2. Wash
  3. Rinse - remove residual detergent
  4. Disinfection
  5. Drying - purging the load and chamber with heated air
14
Q

The management requirements for an LDU can be broadly divided into what categories?

A
  1. General management
  2. Risk management
  3. Health and safety
  4. Training
  5. Quality management system
15
Q

What are the 8 principles of the ISO 9000 series of standards?

A
  1. Customer focus
  2. Leadership
  3. Involvement of people
  4. Process approach
  5. Systems approach to management
  6. Continual improvement
  7. Factual approach to decision making
  8. Mutually beneficial supplier relationships
16
Q

What is validation?

A

A documented procedure for obtaining, recording and interpreting the results needed to show that a process will consistently yield a product complying with pre-determined specifications

17
Q

A washer disinfector cycle must achieve specific parameters and be tested in accordance with what guidance?

What does this guidance reference?

A

SHTM 2030

BS EN 15883 standard

18
Q

Is washing just as important as sterilisation?

A

Yes as it removes prions

19
Q

What temp is used for a washer disinfector WASH cycle?

A

40-65 degrees

20
Q

In a washer disinfector, at what temperature and time does thermal disinfection take place?

A

90-95 degrees for 1 minute

21
Q

Who are DPI’s and DPA’s? What is their role?

A

Dental practice inspector;
Uses the national combined inspection checklist to undertake inspections
Compiles reports for each practice inspection

Dental practice advisor;
Provide support and advice to GDP’s
Carry out inspection visits (announced or unannounced) to assist in helping GDP’s to meet required standards