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BDS3 BAMS Patient Safety > dirty to sterile > Flashcards

dirty to sterile Flashcards

1
Q

Operator

A

the person with the autority to operate decontamination equipment, this includes noting instrument readings, replenishment of detergent solutions and simple housekeeping duties (ensuring equipment is cleaned and ready to be used)

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2
Q

user

A

defined as the person responsible for the day-to-day management of the equipment

in an LDU it may also be the dental practitioner, a senior dental nurse or practice manager

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3
Q

main responsibilities of the USER (6)

A
  • to certify the equipment is fit for use
  • to hold all documentation relating to decontamination equipment; including names of other key personnel - such as Authorising Engineer
  • to appoint operators where required and ensure they are adequately trained and maintain records of training
  • to maintain sufficien records of decontamination equipment procedures
  • to establish procedures for parametric release (ensure tha instruments have been sterilised)
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4
Q

Manager

A

defined as the person who is ultimately accountable for the operation of the LDU

usually dental practitioner

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5
Q

decontamination

A

is the combination of processes (including washing, disinfection and sterilisation) employed to make re-usable items safe for handling by users and for use on pts

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6
Q

role of LDU

A

Local decontamination unit within a dental practice

to decontaminate reusable medical devices

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7
Q

decontamination cycle/ lifecyle of RMD

A
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8
Q

sinner circle

A

chemicals

temperature

energy

time

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9
Q

policy

A

an overall statement of intent or is a set of rules or requirements to be followed to achieve a given process/outcome

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10
Q

procedure

A

guidelines of major methods to be used to meet the policies as defined by the company/practice

tell you WHO does WHAT and WHEN

  • who - department, staff member or grade (dental nurse/ practice manager)
  • when - what sequence
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11
Q

objective

A

landmark event in pursuit of overall intent (usually subject to regular review and amendment)

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12
Q

work instruction

A

specific steps needed to carry out the procedures

HOW to do something

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13
Q

work flow

A

dirty to clean. Linear flow

clean, inspect, package, sterilisation

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14
Q

3 pieces of legislation realted to LDU running

A
  • health and safety at work act
  • consumer protection act
  • medical device directive
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15
Q

what to do on entering and leaving LDU

A

hand hygiene

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16
Q

non immersion manual washing

A

approproriate for certain equipment where items will become compromised by soaking in aqueous solution e.g. electrical and electronic equipment

these items should be cleaned in accordance with manufacturer’s instructions

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17
Q

immersion manual washing

A

most instruments - see manufacturer’s instructions

wash temperature is of particular importance when using enzymatic detergents - follow manufacturer’s instructions

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18
Q

2 types of manual washing

A

immersive

non-immersive

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19
Q

when to be particularly mindful of wash temperaure

A

when using an enzymatic detergent

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20
Q

manual washing

remember

A
  • PPE
    • full face visor, gown, thick marigold type gloves
  • follow work instructions
  • detergent
    • should be neutral enzymatic
    • correct concentration prep
  • water temp
    • 30-35oC
  • no metal brushes (plastic only)
  • rinse/immerse instruments in purified water (not handpieces) after cleaning and the dry
21
Q

e.g. non immersion equipment

A

lumened or cannulated e.g. handpieces

22
Q

e.g. detergent for manual washing

A

neutral enzymatic (endozyme AW plus)

30ml to 8 litres water

23
Q

water temperature for manual washing

A

30-35oC

24
Q

tools for manual washing

A

plastic only brushes (no metal)

25
Q

ultrasonic cleaner

remember

A
  • follow work instructions
  • alwasy run a purge cycle (de-gas) after filling (no instruments)
  • first run with instruments will be a daily test cycle
    • fill in daily test sheet in log book and staple printout
  • take care when loading
    • no overlapping or shadowing
    • hinged instruments open (forceps)
  • rinse/immerse instruments after cleaning and then dry
26
Q

role of purge (de-gas) US cycle

A

no instruments

done first

remove air/oxygen from water

27
Q

why should handpieces not be placed in US

A

should not be immersed in water (channelled/lumened)

ultrasonic activity will damage the high speed turbine

28
Q

detergents for ultrasonic

A

neutral (pH 7) or enzymatic (sonozyme)

25ml measured dose (sachet)

29
Q

how often to drain and fill US

A

at least twice a day (4 hourly intervals)

more often if water visibly soiled

30
Q

how to leave US overnight

A

always drain, clean and dry at end of day

refil next morning

31
Q

tests for US

A

daily test - log book

weekly test - inc daily test plus cleaning efficacy tet (protein test strip), staple result with printout in log book

32
Q

washer disinfector

remember

A
  • follow work instructions
  • housekeeping duties
  • detergent - neutral or enzyme
  • first run with instruments - daily test cycle
    • record with printout
  • thermal disinfection rinse with purified water (RO water)
33
Q

housekeeping duties for washer disinfector

A

clean filter

clean door and seal

check detergent level

check printer for paper

34
Q

daily automatic control test

washer disinfector

A

first run with instruments

fill in daily test sheet in log book and staple printout

35
Q

why does thermal disinfection in washer disnfector use RO/purified water

A

prevent depositing of minerals on instruments and washer disinfector

36
Q

weekly test for washer disinfector

A

daily test plus

cleaning effiicacy test (protein test stip) and staple result along with printout into log book (weekly automatic control test)

37
Q

what to do after all types of cleaning carried out

A

insepct instruments under lit magnifier

38
Q

3 types sterilisers

A

type N

type B

type S

39
Q

type N steriliser

A

Normal

non vaccum, passive air removal

40
Q

type B steriliser

A

better

vacuum, acitve air removal

41
Q

type S steriliser

A

special

only use according to manufacturer’s instructions

42
Q

sterility

A

an instrument is sterile if the probabiliy that there are viable microbes on the instrument is equal to 1 in a million

43
Q

sterilisers

remember

A
  • follow work instructions
  • house keeping
  • water
    • purified water
  • first run with instruments is daily test cycle
    • fill in log book and staple printout
  • type B only
    • packaged instruments
    • lumened or cannulated instruments
  • take care when loading
44
Q

e..g purified water

A

reverse-osmosis water (RO)

de-ionised

distilled

sterile water

used for irrigation in sterilisation

45
Q

house keeping for sterilisers

A

wipe door seal and chamber

check door safety devices

drain and refill daily

(Type N check printer for paper)

46
Q

type B can process

A

packaged instruments

lumened or cannulated instruments

47
Q

type N tests

A

daily test - carry out, check printout sign, staple in logbook

weekly test - daily test plus steam penetration test (chemical test strip), check and sign printout and staple into logbook

48
Q

type B tests

A

daily tests

  • steam penetration test (chemical strip test) empty chamber, helix or bowie dick
    • staple checked and signed printout in logbook

weekly test

  • daily test plus vacuum leak test and the air detection function test
    • record as above

usually carried out by user/mamager unless delegated

49
Q

sterilising temperature

A

134-135oC

2.05 to 2.3 bar for minimum 3 mins

(common terminology 134oC, 2.25 bar for min 3 mins)

BDS3 BAMS Patient Safety (12 decks)

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