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E5 March 2016 > 14295B HM manual chapter 10 Disinfection and Sterilization > Flashcards

14295B HM manual chapter 10 Disinfection and Sterilization Flashcards

1
Q

what is the highest level of contamination control because it results in the total destruction of all forms of microbial life

A

sterilization

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2
Q

what kills disease causing micro organisms but is a less lethal process than sterilization?

A

disinfection

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3
Q

disinfection is achieved by either chemical or what other means

A

heat

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4
Q

glutaraldehydes of 2 to what percent are FDA registered

A

3.2

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5
Q

CHLORINE DIOXIDE HAS A RAPID ACTION OF 3 MINUTES FOR FOR DISINFECTION OR HOW LONG FOR STERILIZATION

A

6 HOURS

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6
Q

within how many minutes of exposure is iodophors biocidal activity accomplished

A

10 to 25

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7
Q

HOW OFTEN SHOULD HVE AND SALIVA EJECTOR TUBING AND CUSPIDOR BE FLUSHED WITH A CENTRAL EVACUATION SYSTEM CLEANER

A

WEEKLY

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8
Q

under what guidelines should anesthetic cartridges for nonsurgical use be dispensed to prevent contamination of bulk supplies

A

unit dose

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9
Q

at least what level disinfection do all non critical category items require

A

intermediate

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10
Q

what dose the sterilization process take place in

A

csr

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11
Q

what process is safer and more effective than manual scrubbing

A

ultrasonic

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12
Q

the ultrasonic cleaner uses electrical energy to generate sound waves. when the sound waves travel through the liquid, millions of tiny bubbles from and first continuously. what is the process called

A

cavitation

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13
Q

ultrasonic cleaning time should be limited to how many minutes to avoid damage to instruments

A

five

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14
Q

heat sealed overwriting will extend a 30 day shelf life to how many days

A

180

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15
Q

what refers to the complete destruction of all living organisms including bacterial spores and viruses

A

sterilization

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16
Q

what is the most dependable and economical method of sterilization

A

steam under pressure (autoclave)

17
Q

what autoclave is the most modern and economical to operate and requires the least time to sterile a single load

A

pre vacuum high temperature

18
Q

at what temperature are all known organisms killed

A

250 F

19
Q

all operating rooms are equipped with high speed (flash) sterilizers. wrapped covered opened instruments placed in perforated trays “flash” sterilized for 3 minutes at what temerature

A

270 F

20
Q

what type of test was developed for pre vacuum sterilizers to determine if the air has been removed from the chamber during the pre vacuum stage

A

bowie-dick

21
Q

How often will all Navy pre vacuum sterilizers be tested using the Bowi Dick type test

A

daily

22
Q

what is the least expensive from of heat sterilization

A

dry heat

23
Q

how many minutes at 320-345 F plus the time required to preheat the chamber before beginning the sterilization cycle is a typical dry heat cycle

A

90 min

24
Q

Chemical vapor sterilization requires 20-40min at 270 F with what psi when instruments are either unwrapped or bagged following the manufacturers instructions

A

20min

25
Q

ethylene oxide (ETO) gas uses relatively low temperatures fro sterilization. Using a heated unit sterilization can be achieved in 4-12 hours at 120 F. however a lengthy aeration time of at least how many hours must follow each cycle

A

16 hrs

26
Q

What is the only liquid chemical, if properly used, that is capable of rendering an item sterile?

A

Glutaraldehyde

27
Q

to ve considered sterile how many hours must items be totally submerged in a glutaraldehyde solution

A

10 HRS

28
Q

Effective and preferred methods of sterilization are the steam autoclave, dry heat oven chemical vapor, or what else for surgical insterments

A

Ethylene oxide

29
Q

the three most commonly used sterilization monitors in the Navy are physical chemical and what other

A

biological

30
Q

what type of monitoring involves looking at the gauges and readings on the sterilizer and recording the temps pressure and exposure time

A

physical

31
Q

what type of monitoring (internal and external) involves the use of a heat-sensitive chemical that changes color when exposed to certain conditions

A

chemical

32
Q

what are chemical dyes that change color when exposed to steam, dry heat, or chemical vapor for a specified period of time

A

internal indicators

E5 March 2016 (28 decks)

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