Sterilization

Question 1

How much time is required, for a sterilization usually referred to as “flash sterilization”, 28 lbs of pressure at 270•F (132•C)?

Answer 1

3 minutes, 10 minutes for Tubing

Question 2

Effective sterilization under 15lbs of pressure at 250•F (121•C) requires how much time?

Answer 2

15 to 30 minutes

Question 3

What term is used for the elimination of all microorganisms and spores from instruments?

Answer 3

Sterilization

Question 4

In order for surgical instruments to be effectively disinfected they must?

Answer 4

Be throughly cleaned and completely dried.

Question 5

What term is used for the reduction of microorganism on objects and surfaces?

Answer 5

Disinfection

Question 6

What material is most widely used in microsurgical and is extremely resistant to staining and corrosion?

Answer 6

Stainless Steel

Question 7

What material is used to toughen steel, is not only strong, but durable, with a metallic element Ti?

Answer 7

Titanium

Question 8

What metals should not be ultrasonically cleaned together?

Answer 8

Stainless Steel and Titanium

Question 9

What cleaning method is gentle and utilizes ultrasonic wave movements to dislodge any remaining debris?

Answer 9

Ultrasonic Cleaning

Question 10

What should be done to a diamond blade after use?

Answer 10

Flushed immediately with sterile distilled water squirted with force through a clean syringe.

Question 11

What is done to complete the process before returning instruments to storage?

Answer 11

Final rinsing with demineralized distilled water and drying completely

Question 12

What should be done to the instruments after ultrasonic cleaning?

Answer 12

Bathed in an instrument bath or milk

Question 13

Approximately how long is the ultrasonic cleaning cycle?

Answer 13

5 minutes

Question 14

What material should not be ultrasonic cleaned because it can loosen the material?

Answer 14

Chrome Plated

Question 15

What is the most technologically advanced procedure that destroys a wide range of microorganisms?

Answer 15

Plasma

Question 16

What is used to achieve fast low temperature, low moisture sterilization?

Answer 16

Low temperature hydrogen peroxide gas Plasma

Question 17

What alternative method of sterilization for instruments and new materials that cannot be autoclaved, with a minimum time of 20 minutes?

Answer 17

Chemical or Cold sterilization

Question 18

What is the most common form of gas sterilization, and the least taxing?

Answer 18

Ethylene Oxide (EO2)

Question 19

What type of sterilization has an exposure time ranging 1 1/2 to 2 hours with a temperature range of 50• to 60• and humidity range of 40% to 80%?

Answer 19

Gaseous Chemical Sterilization

Question 20

What sterilization can effectively destroy bacteria, fungal spores, tubercle bacilli, viruses and all forms of microbial life?

Answer 20

Liquid Chemical Sterilization

Question 21

What is the most common and effective liquid chemosterilizer?

Answer 21

Activated Glutaraldehyde 2%

Question 22

What plastic is the only one acceptable for steam sterilization?

Answer 22

Polypropylene Film (1-3 mm thickness)

Question 23

What packaging is not acceptable for gas sterilization?

Answer 23

Nylon

Question 24

Using chemical solutions to reduce the source of infection is a goal of what?

Answer 24

Disinfection

Question 25

What is the most frequently used form of sterilizing instruments that damages steel using moist heat under pressure?

Answer 25

Steam Sterilization (Autoclave)

Question 26

What gram negative rod microorganism is the most destructive to the eye?

Answer 26

Pseudomonas Aeruginosa

Question 27

What microorganisms causes conjunctivitis, corneal ulcers or endophthalmitis?

Answer 27

Streptococcus Pneumoniae

Question 28

What microorganisms is round shaped and gram positive living on the skin?

Answer 28

Streptococci

Question 29

What are the smallest infectious organisms that can be transmitted through oral, respiratory, intestinal and urinary tracts?

Answer 29

Viruses

Question 30

What must be done to tubing and cannulas that have been utilized to deliver or extract fluids, viscous substances, and or medications?

Answer 30

Forcefully flushed clear

Question 31

What is not advised to use to clean Titanium?

Answer 31

Hydrogen Peroxide

Question 32

What does METICO suggest to use to complete the cleaning of the diamond blade?

Answer 32

Use a diamond knife cleaning block which should be moistened with 3 drops of water

Question 33

What type of gem blades can be sterilized with gas and or steam?

Answer 33

Diamond and Ruby Blades

Question 34

What gem is not recommended to be ultrasound cleaned?

Answer 34

Sapphire Blade

Question 35

How much time is needed to clean instruments with Gaseous Chemical Sterilization?

Answer 35

1 1/2- 2 Hours

Question 36

What range of temperature is needed for Gaseous Chemical Sterilization?

Answer 36

50-60 Degrees

Question 37

How much humidity is used for Gaseous Chemical Sterilization?

Answer 37

40%-80% Humidity

Question 38

How much pressure is needed for flash sterilization?

Answer 38

28 lbs

Question 39

What temperature is used for flash sterilization?

Answer 39

270• F (132•C)

Question 40

What is Universal Precautions?

Answer 40

Guidelines designed to control the transmission of any infection

Question 41

What is the goal of Disinfection?

Answer 41

Reduce the source of infection

Question 42

How is sterilization achieved?

Answer 42

By the complete destruction of all microorganisms

Question 43

Steam sterilization requires how much pressure with a 15-30 minute exposure time?

Answer 43

15 lbs of pressure

Question 44

Steam sterilization at what temperature requires 15-30 minutes of exposure time?

Answer 44

250•F (132•C)

Question 45

When is flash sterilization used?

Answer 45

When there is not enough time to sterilize in another method

Question 46

What is the minimum time required for Chemical or Cold sterilization?

Answer 46

20 minutes

Question 47

What is a dry chemical sterilization method?

Answer 47

Gas

Question 48

What sterilization is the least damaging to fragile instruments?

Answer 48

Ethylene Oxide Gas sterilization

Question 49

How long do instruments need to be subjected to a liquid sterilization?

Answer 49

10 hours