HM MAN ch 10: disinfectin and sterilization

Question 1

____ is a less lethal process than sterilization, which kills disease causing micro-organisms

Answer 1

disinfections

Question 2

what is the contact time for chlorines?

Answer 2

2-10 mins

Question 3

what is the contact time for complex phenols?

Answer 3

10 mins

Question 4

what is the contact time for dual/synergized quaternary ammonium compounds?

Answer 4

10 mins

Question 5

what is the contact time for iodophors?

Answer 5

10 mins

Question 6

what is the contact time for phenol-alcohol combinations?

Answer 6

10 mins

Question 7

what is the contact time for other halogens?

Answer 7

5 mins

Question 8

what level of disinfectants are glutaraldehyde solutions?

Answer 8

high-level

Question 9

chlorine dioxide solutions have a rapid action of __ minutes for disinfection or __ hours for sterilization.

Answer 9

3 minutes

6 hours

Question 10

Iodophors are classified as what level of disinfectant?

Answer 10

intermediate

Question 11

iodophors have a biocidal activity that is accomplished within __ to __ minutes of exposure.

Answer 11

10-25

Question 12

Phenolics are have what level of disinfectant?

Answer 12

intermediate

Question 13

to prevent skin and eye irritation, protective gloves and eyewear must be worn during what’s use?

Answer 13

phenolics

Question 14

three-way syringe tips, high volume evacuator saliva ejector tips and radiographic positioning devices are all example of what classification and require chemical disinfection?

Answer 14

semi-critical

Question 15

what is the highest level of contamination control?

Answer 15

sterilization

Question 16

why is sterilization the highest level of contamination control?

Answer 16

because it results in the total destruction of all forms of microbial life

Question 17

what is the safest method and provides an effective cleaning process?

Answer 17

automated washer processor

Question 18

which process is safer and more effective than manual scrubbing?

Answer 18

ultrasonic cleaning

Question 19

when the sound waves travel through the liquid, millions of tiny bubbles form and burst continuously. what is this process called?

Answer 19

cavitation effect

Question 20

how does the cavitation effect work?

Answer 20

the bursting bubbles scrub everywhere the liquid can penetrate

Question 21

limit ultrasonic cleaning time to ___ to avoid damage to instruments.

Answer 21

5 minutes

Question 22

never use what to remove instruments from the ultrasonic cleaning unit.

Answer 22

your hands

Question 23

heat sealed overwrapping will extend a 30 day shelf life to ___ days.

Answer 23

180

Question 24

what is the shelf life of an item that has a paper envelope sealed with sterilization tape?

Answer 24

365 days

Question 25

what is the shelf life of an item that has a nonwoven blue wrap.

Answer 25

30 days

Question 26

what is the shelf life of an item that has a nonwoven blue wrap, plastic covered, heat-sealed?

Answer 26

365 days

Question 27

what is the shelf life of an item that has a peel plastic packs, heat-sealed or self sealed?

Answer 27

365 days

Question 28

what is the shelf life of an item that has parchment paper or dennison wrap

Answer 28

30 days

Question 29

what is the shelf life of an item that uses glass test tubes with screw caps?

Answer 29

indefinite

Question 30

___ is the most dependable and economical method for sterilization?

Answer 30

steam under pressure

Question 31

what are the two most common types of steam sterilizers used in the Navy?

Answer 31

1. downward displacement (gravity)

2. high temperature

Question 32

when does the timing begin when using the downward displacement autoclave?

Answer 32

when the temperature is above 245 F

Question 33

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

Answer 33

prevacuum, high temperature autoclave

Question 34

sterilization using the prevacuum high temperature autoclave can be accomplished at ___ degrees F for __ min or ___ degrees F for __ mins

Answer 34

250 F for 30 minutes

273 F for 10 minutes

Question 35

Wrapped covered opeaned instruments placed in perforated trapys are flash sterilized for __ minutes at ___ Degrees F.

Answer 35

3 minutes at 270 Degrees F

Question 36

How frequent must all Navy Prevacuum sterilizers be tested with the bowie-dick test?

Answer 36

daily

Question 37

A typical dry heat cycle is __ minutes at ___ - ___ degrees F

Answer 37

90 minutes at 320-345 degrees F

Question 38

what is the only liquid chemical that is capable of rendering an item sterile?

Answer 38

glutaraldehyde

Question 39

an item to be sterilized must be totally submerged in the glutaraldehyde solution for how long?

Answer 39

10 hours

Question 40

what are the effective and preferred methods of strilizaion for surgical instruments?

Answer 40

steam autoclave
dry heat oven
chemical vapor
ethylene oxide

Question 41

one accepted method of sterilization for burs and diamonds are to place them in a screw cap glass test tube or aluminum foil wrapped bur block and dry heat sterilize for __ minutes at __ to __ degrees F.

Answer 41

90 minutes at 320-345 degrees F

Question 42

what involves lookin at the gauges and readings on the sterilizer and recording the temperatures, pressure, and exposure time?

Answer 42

physical monitoring

Question 43

what involves the use of a heat-sensitive chemical that changes color when exposed to certain conditions?

Answer 43

chemical monitoring

Question 44

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

Answer 44

internal indicators

Question 45

what are designed to assess whether sterilization actually occurred and to confirm that all bacteria and endospores have been killed?

Answer 45

biological monitors

Question 46

the CDC, and the ADA recommend that biological monitoring be performed at least how frequent? though they preferably recommend ___.

Answer 46

at least weekly but preferably daily