Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

LDU practical notes > Competency > Flashcards

Competency Flashcards

1
Q

You have dirty instruments, in the red box, where would you place these instruments first in the LDU?

A

In the dirty instrument set down area (red box for dirty instruments)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the first step of the cleaning process?

A

The use of the washer disinfector21§q

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Before starting operating the WD , what should be carried out?

A

Daily checks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What are the 6 daily checks for the washer disinfector?

A
  • Check load carrier is free from damage, instruments or debris
  • Check spray arms are rotating freely, and jets are not blocked
  • Check door seal is intact and free of damage or debris
  • Ensure strainer is not blocked / free of debris or instruments
  • Verify enough chemical and replenish if necessary
  • Record disinfection temperature of the first cycle
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

3 rules of placing instruments in the WD?

A
  • No overlapping or shadowing of instruments
  • Unhinge hinged instruments and place in position where they will not close
  • Disassemble instruments
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Which programme will you select in the WD?

A

P1 then press start

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name the 5 stages of the WD?

A
  • Prewash
  • Wash
  • Rinse
  • Thermal disinfection
  • Drying
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe prewash and give temperature?

A

Remove gross contamination using water - below 35C

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe (wash)

A
  • physical force of water and chemical action of detergent
  • Thermal heat activates and facilitate the action of detergent
  • This removes any remaining soil
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Describe (rinse)

A

Removal of any cleansing agents

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Describe thermal disinfection and give temperature + holding time ?

A
  • Using reverse osmosis water and heat (90-95C) for 1 minute holding time
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe drying stage and give temperature?

A

Circulating air heated to 90 degrees for 20 minutes to remove any remaining moisture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

After the instruments are out of the washer disinfect-or, what is the next step?

A

Inspection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How would you inspect the instruments?

A
  • Under illuminated magnifier to look for contamination or damage
  • Send for repair if damaged
  • If contamination present then process manually then in USB
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What PPE should be worn during manual washing?

A
  • Heavy duty gloves
  • Apron
  • Visor
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are the two types of manual washing?

A

Immersion and non immersion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When would you not immerse instruments during manual washing?

A
  • Instruments with channels
  • such as hand pieces
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which instruments are not suitable to be processed in the USB?

A

Handpiece

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Once USB cycle is complete, what is the next step?

A
  • Rinse the instruments in a separate sink than the one for manual washing using cold water
20
Q

After this, you need to change your PPE , then what?

A

Reprocess the instruments in the washer disinfector, then inspect again

21
Q

What is the temperature, time and pressure for sterilisation?

A
  • 134-137 degrees C
  • 2.05 - 2-35 Bar
  • For the 3 minutes
22
Q

What are the two main types of sterilisers?

A
  • Type B - vacuum
  • Type N - non vacuum
23
Q

What type of water must be used in sterilisation?

A

Purified water such as RO , distilled , deionosed or sterilised

24
Q

What test is unique to type B steriliser?

A
  • Bowie dick test
  • This tests for steam penetration
25
What instruments can be processed in type B steriliser?
* Wrapped * Porous * Lumened or channelled
26
What instruments can be processed in type N steriliser?
* Rigid instruments * non-wrapped and non lumened * Such as mirrors or proves
27
Once the instruments are sterilised, how are you going to remove them from the chamber?
Using a handle as they will be hot; may lead to a burn
28
Once instruments are removed from the steriliser , where are they placed?
* in the clean instruments cool down area * once cooled, they are placed in the clean transport box (blue) * The blue box is then transported to a storage facility or procedure room
29
How should the boxes be? (5)
* Leak proof * tight lid * colour coded/clearly marked * Rigid sided * Durable
30
Pt has just left, the procedure room is messed up (needles , matrix band .... etc) , what should have been done?
* Dispose sharps before the patient leaves into sharp box * Tick the sheet for checklist * Put instruments into dirty red box * then talk through the whole process
31
When recording the temperature, where do you put it ?
Into the log book or USB
32
Describe type N steriliser cycle?
* Air is removed by gravity displacement as the water boils * Simple * non-vacuum
33
Describe type B steriliser cycle?
* Active air removal using a vacuum pump allowing steam to flush in due to negative pressure
34
One advantage of Type N steriliser over type B?
Simpler
35
Disadvantages of type B steriliser over type N steriliser?
* Additional periodic testing is needed * more time cycle due to drying stage for wrapped instruments
36
How should the storage area be ?
* Dry * Clean * good temperature * no direct sunlight
37
What should you do to the hand-piece before placing them in the WD?
Lubricate (oil)
38
Give the 6 daily tests for AWD?
* ACT - compare to log book * levels of detergent * Check spray arms spin freely and jets are not blocked * Check strainer and filters * verify load carrier * Check door seal
39
Give 3 weekly tests for AWD?
* Safety checks ( door seal) * Daily tests ( ACT) * Cleaning efficacy test by residual soil detection
40
Give the 5 daily checks for sterilisers?
* Check load carrier and chamber * Check door seal * Fill feed water reservoir * Crain used water reservoir * Record cycle information
41
What daily check is carried out out for vacuum sterilisers?
* Steam penetration test * Using bowie-dick or helix device
42
What are the weekly tests for sterilisers?
* Safety checks - door seal and safety devices * ACT and steam penetration test * Air leakage test ( Type B) * Automatic air detection function test (Type B)
43
What should you do before inspecting the instruments?
* Dry
44
What are the daily tests for ultrasonic bath?
* Ensure filter and strainers are clean * Drain machine after each session * Check detergent levels
45
What are the weekly tests for USB?
* Safety checks * Protein residue test * ACT * Daily checks
46

LDU practical notes (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions