dish the dirt - environmental surfaces, transmission and cleaning Flashcards Preview

BDS2 - BAMS > dish the dirt - environmental surfaces, transmission and cleaning > Flashcards

Flashcards in dish the dirt - environmental surfaces, transmission and cleaning Deck (50)
Loading flashcards...
1

what are the 6 links in the chain of infection

- infectious agent
- reservoirs
- portal of exit
- means of transmission
- portal of entry
- susceptible host

2

what is most contamination cause by

- from scaling followed by cavity preparations

3

in a study what was the number of oral streptococci found

- in saliva = 67,000,000 cfu/ml
- in air = 3,700 cfu/ml
- on surface = 8,700 cfu/ml

4

in a study how much blood was found following treatment

- 3 in 1 syringe = 40%
- tap handles = 20%
- light handle = 18%
- operating cart handle = 10%

5

in a study how much blood was found after cleaning

- 3 in 1 syringe = 10%
- tap handles = 4%
- light handle = 18% (probably missed)
- operating cart handle = 2%

6

what is the Spaulding classification

- critical = high risk
- semi critical = medium risk
- non-critical = low risk
- minimal risk

7

what is critical risk Spaulding classification

- items in contact with normally sterile body sites
- forceps, periodontal scaler

8

what is semi critical risk Spaulding classification

- items in contact with intact mucous membranes
- dental handpiece, mirror

9

what is non critical Spaulding classification

- items in contact with intact skin
- light cure

10

what is minimal risk Spaulding classification

- items not normally in contact with intact skin
- dental chair

11

what is low risk equipment done with

- items in contact with intact skin
- decontamination process = cleaned of chemical disinfected

12

what is minimal risk equipment done with

- items not normally in contact with intact skin
- cleaned = chemically disinfected in risk assessed circumstances

13

what are house-keeping surfaces

- non critical environmental surfaces
- not directly touched during dental treatment and carry lowest risk of disease transmission
- walls, floors, sinks

14

what are clinical contact surfaces

- non-critical environmental surfaces
- contaminated from patient materials wither by direct spray or splatter generated during dental procedures
- OR by contact with gloved hand of health care professionals
- bracket table, drawer handles, light, computer

15

where is MRSA most often found in dental environment

- 3 in 1 surging
- dental chair

16

what is an antibiogram

- overall profile or antimicrobial susceptibility testing results of a specific microorganism to a battery of antimicrobial drugs

17

what is the most common mode of transmission

- hands of healthcare workers
- can be reduced 50% if appropriate hand hygiene is carried out

18

how long does influenza survive on steel and plastic

- 24-48 hours

19

how long does influenza virus survive on cloth, paper and tissue

- <8-12 hours

20

how can transmission of influenza occur

- steel to hands over 24 hours
- paper tissue to hands for 15 mins

21

how long does influenza virus survive on hands

- approx 5 mins

22

where has influenza been isolated from

- cloths, keyboards, light switches, toys, phones, taps, remotes

23

how many times an hour do you touch your hair

- 4

24

how many times an hour do you touch you ear

- 1

25

how many times an hour do you touch your eyes

- 3

26

how many time an hour do you touch your nose

- 3

27

how many time an hour do you touch you mouth

- 4

28

how many times an hour do you touch your cheek

- 4

29

how many times an hour do you touch your neck

- 1

30

how many times an hour do you touch your chin

- 4