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Flashcards in 12 Deck (18)
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1
Q

ultrasonic cleaning vs ultrasonic waves

A

ultrasonic cleaning = cavitationultrasonic waves create minute gas bubbles, implode, removes debris

2
Q

washer decontaminators vs disinfectants

A

washer decontaminators carry no specific claims on antimicrobial efficacywasher disinfectants achieve high level disinfection

3
Q

what is the only approved method to dry instruments

A

filtered medical grade compressed air

4
Q

characteristics of wrapping for sterile instruments

A

permeable to steam/gasesresistant to heatresistant to physical damage/penetrationminimal wrap memorylong shelf lifefree of toxic ingredients/dyesstorage in controlled air/temp environment

5
Q

most common wrapping material used for steam sterilization

A

cotton muslin (140-270 count)requires double wrapnot moisture resistant

6
Q

how does steam sterilization kill microorganisms

A

coagulation and denaturation of proteins by moist heat

7
Q

what is the typical temperature for steam sterilization for 30 minutes in a gravity displacement sterilizer? how long should it dry?

A

121 C (250 F) 15-30 minutes drying

8
Q

what is the typical temperature for steam sterilization for 4 minutes in a pre vacuum unit

A

132 C (270 F)

9
Q

how long does flash sterilization take? what desired temperature?

A

3 minutes135 C (275 F)1 min drying

10
Q

shelf life of 2 layer cotton muslin

A

2 days

11
Q

shelf life of 2 layer each double wrapped cotton muslin?

A

3 weeks

12
Q

shelf life of polypropylene peel pouches

A

12 months/1 yearwater impermeable

13
Q

most common chemical sterilant for liquid cold sterilization

A

glutaraldehyde14 d half life

14
Q

most common type of steam sterilization autoclave in vet practice

A

gravity displacement sterilizer

15
Q

recommended indicators of sterilization

A

type 1 (tape) to be on outside of outer wraptype 5 (react to all parameters) in inside of deepest portion of pack

16
Q

how to label pack

A

name of instrumentssterilization dateexpiration dateinitials

17
Q

environmental conditions for stored packs

A

temp should not exceed 75F (24 C)humidity should not exceed 70%4 air exchanges per hour w positive pressure airflow

18
Q

shelf life of small instruments after autoclaving and packed in double layer linen

A

24 months

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