Hm 10 Disinfection And Sterilization

Front 1

____ is a less lethal process than sterilization, which kills disease causing micro-organisms. This (does/ does not) include the destruction of resistant bacterial spores.

Back 1

Disinfection
does not include the destruction of resistant bacterial spores.

Front 2

The ______ classifies disinfectants as __, __ and __ level, based on the effectiveness and contact time of the solution and the biocidal activity of an agent against bacterial spores, mycobacterium tuberculosis, lipid and nonlipid viruses, and vegetative bacteria.

Back 2

Environmental Protection Agency (EPA)
high, intermediate, or low

Front 3

Glutaraldehydes of 2 to 3.2 percent are FDA-registered, classified as ___level disinfection.

Back 3

high-level disinfection

Front 4

Chlorine dioxide二氧化氯 is an effective surface disinfectant or sterilant. These solutions may be used for ___ level disinfection of ___ items that are not subject to corrosion.

Back 4

high-level disinfection
semi-critical items

Front 5

chlorine dioxide must be discarded ____ (how often?); has a ____ use life as a sterilant消毒剂; and does not readily penetrate organic debris.

Back 5

daily, 24-hour,

Front 6

Iodophors are classified as ____ level disinfectants or can be used as antiseptics if the product label claims tuberculocidal (lethal to mycobacterium tuberculosis) activity.

Back 6

intermediate level

Front 7

Phenolics酚醛树脂 are also classified as an _____level disinfectant, provided the product label indicates a claim to tuberculocidal activity.

Back 7

intermediate-level

Front 8

All semi-critical category items should receive ___level disinfection.

Back 8

high-level

Front 9

All non-critical category items require at least ____level disinfection.

Back 9

intermediate-level

Front 10

The ____ processor is the safest method and provides an effective cleaning process.

Back 10

automated washer processor

Front 11

____ process is safer and more effective than manual scrubbing.

Back 11

Ultrasonic cleaning process

Front 12

____ is effective for cleaning instruments when automated washer processor or ultrasonic cleaning units are not available.

Back 12

Manual scrubbing

Front 13

_____ (which way?) is the most dependable and economical method of sterilization.

Back 13

Steam under pressure autoclave 高压灭菌器

Front 14

Nosocomial Infection Control Program

Back 14

BUMEDINST 6220.9 Series

Front 15

Time-related shelf life for Paper envelop (sealed with sterilization tape)

Back 15

365 days

Front 16

Time-related shelf life for Nonwoven blue wrap

Back 16

30 days

Front 17

Time-related shelf life for Nonwoven blue wrap, plastic covered, heat-sealed

Back 17

365 days

Front 18

Time-related shelf life for Dennison Wrap

Back 18

30 days

Front 19

Time-related shelf life for Glass test tubes with screw caps

Back 19

Indefinite

Front 20

______ was developed for pre-vacuum sterilizers to determine if the air has been removed from the chamber during the pre-vacuum stage.

Back 20

Bowie-Dick type test 鲍伊迪克类型测试

Front 21

The item to be sterilized must be totally submerged in the glutaradehyde 戊二醛 solution for ___ hours. Anything shorter than that time is disinfection.

Back 21

10 hours

Front 22

Dry heat sterilization, the T must be ____ (Temp and Time)

Back 22

320 F to 345 F (90 minutes).

Front 23

Chemical vapor sterilization requires __ minutes at ___F with ___ psi when instruments are either unwrapped or bagged.

Back 23

20-40 minutes at 270 F
20 psi

Front 24

____ gas uses relatively low temperatures for sterilization. Using a heated unit, sterilization can be achieved in ___ hours at ____F.

Back 24

Ethylene oxide (ETO)
4- 12 hours at 120°F

Front 25

Three most commonly used sterilization monitors in the Navy are ___, ___ and ___ monitors.

Back 25

physical, chemical, and biological monitors

Front 26

How many and what stages are in an Operating Cycle?

Back 26

5 stages:
Vacuum Stage: Removes air molecules and lowers chamber pressure
Injection Stage: Introduces hydrogen peroxide into the chamber
Diffusion Stage: Hydrogen peroxide vapor to penetrate packages
Plasma Stage: A radio frequency creates the electromagnetic field that converts the hydrogen peroxide into low temperature gas plasma
Vent Stage: Permits air into the chamber to return to atmospheric pressure

Front 27

10-3. What two types of micro-organisms are killed by all three levels of disinfection?
1. Bacterial spores and nonlipid viruses
2. Tubercle bacillus and lipid viruses
3. Lipid viruses and vegetative spores
4. Lipid viruses and vegetative bacteria

Back 27

4. Lipid viruses and vegetative bacteria

Front 28

10-4. What are the three factors that influence germicidal procedures?

Back 28

Bioburden, nature of the material, and organic debris present

Front 29

10-5. What levels of a glutaraldehyde-based solution are FDA registered?
1. 2.0-3.2
2. 2.3-2.0
3. 1.0-2.0
4. 2.5-2.6

Back 29

1. 2.0-3.2

Front 30

10-17. What cleaning process is safer and more effective than manual scrubbing?
1. Dip tank only
2. Ultrasonic only
3. Automated processor
4. Both 2 and 3 above

Back 30

4. Both 2 and 3 above

Front 31

10-18. How many sinks are needed to allow personnel to perform the manual scrubbing method?
1. One
2. Two
3. Three
4. Four

Back 31

3. Three

Front 32

10-19. What type of cleaning effect does an ultrasonic cleaner provide?
1. Cavitation
2. Positive
3. Gravity
4. Ion

Back 32

1. Cavitation 气蚀

Front 33

10-20. For proper operation, the ultrasonic reservoir should be filled to what level with an ultrasonic solution?
1. 2” from the bottom
2. 2” from the top
3. 1/4 to 3/4’s full
4. 1/2 to 3/4’s full

Back 33

4. 1/2 to 3/4’s full

Front 34

10-22. You should remove instruments from the ultrasonic unit by which of the following means?
1. Your hands
2. Mesh basket
3. Instrument tongs
4. Ultrasonic retriever

Back 34

2. Mesh basket

Front 35

10-26. The period during which sterilized items are considered safe for use is known by which of the following terms?
1. Safe zone
2. Event-rotated shelf life
3. Expiration date only
4. Both 2 and 3 above

Back 35

4. Both 2 and 3 above

Front 36

10-27. What type of related shelf life presumes continued sterility until the package is damaged, wet, or torn?
1. Pack
2. Time
3. Event
4. Damaged

Back 36

3. Event

Front 37

10-30. What occurs when freshly sterilized items are placed on metal or cold surfaces?
1. Contamination
2. Become oily
3. Nothing
4. Stick

Back 37

1. Contamination

Front 38

10-31. When storing sterilized items, how should they be arranged?
1. Alphabetically
2. Expiration, with later dates toward the front
3. Expiration, with later dates toward the rear
4. Contents only, with later dates toward the front

Back 38

3. Expiration, with later dates toward the rear

Front 39

10-33. A steam sterilizer may be referred to by what other name?
1. Old rusty
2. Autoclave
3. Autosteam
4. Dry heat

Back 39

2. Autoclave

Front 40

10-35. What type of sterilizer was designed to overcome the trapping of air in the chamber?
1. Air-free
2. Dry heat
3. Chemical vapor
4. Prevacuum steam

Back 40

4. Prevacuum steam

The prevacuum steam sterilizer (Fig. 10-10) was designed to help overcome the trapping of air in the chamber.

Front 41

10-36. What is the least expensive form of heat sterilization?
1. Air free
2. Dry heat
3. Chemical
4. Gravity displacement

Back 41

2. Dry heat

Front 42

10-37. All Navy prevacuum sterilizers will be tested how often using a Bowie- Dick type test?
1. Quarterly
2. Monthly
3. Weekly
4. Daily

Back 42

4. Daily

Front 43

10-42. What type of sterilization is STERRAD?
1. Prevacuum
2. Gravity
3. Sterris
4. Plasma

Back 43

4. Plasma

Front 44

10-43. What type of sterilization indicator will change color upon short exposure to sterilizing conditions such as steam, dry heat, or chemical vapor?
1. Internal
2. Incubator type
3. Biological
4. Both 1 and 2

Back 44

1. Internal

Front 45

10-44. What type of sterilization monitor will assess whether sterilization actually occurred?
1. Internal
2. External
3. Universal
4. Biological

Back 45

4. Biological

Front 46

10-45. What is the first step to be performed when positive biological monitoring occurs?
1. Notify biomedical repair personnel
2. Notify commanding officer
3. Notify ICO
4. Notify CO

Back 46

3. Notify ICO
Infection control officer

Front 47

_____ monitoring involves looking at the gauges and readings on the sterilizer and recording the temperatures, pressure, and exposure time.

Back 47

Physical monitoring