Dental Assistant > Chapter 8 > Flashcards

Chapter 8 Flashcards

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1
Q

The ideal instrument-processing area should be dedicated only to instrument processing.T/F

A

True

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2
Q

Dry heat sterilization causes no corrosion on instruments.T/F

A

True

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3
Q

The size and shape of instrument-processing areas vary in all dental offices.T/F

A

True

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4
Q

The holding solution container must have biohazard and chemical labels.T/F

A

True

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5
Q

Soiled and clean instruments must be kept together (never in the same cabinet).T/F

A

False

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6
Q

What are the seven steps for sterilization?

A

Transport->cleaning->packaging->sterilization->storage->delivery->quality assurance program

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7
Q

Acronym for the 7 steps of sterilization

A

Tiny cats play soft songs during quarantine

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8
Q

_____ least desirable method of cleaning instruments.

A

Hand scrubbing

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9
Q

A _____\ prevents blood and debris from drying on instruments.

A

Holding solution

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10
Q

An _____ loosens and removes debris from instruments.

A

Ultrasonic cleaner

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11
Q

An_____ sterilizes by superheated steam under pressure.

A

Autoclave

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12
Q

An automated washing and disinfecting machine is called a ___

A

Washer disinfect or or thermal disenfector

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13
Q

List three advantages of the steam autoclave

A
  1. Short time
  2. No corrosion
  3. Instruments dry quickly after cycle
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14
Q

Sterilization center

A

Should be only for instrument processing, separated from operators and dental laboratory. Not apart of the common walkway.

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15
Q

Workflow patter

A

Should proceed in a single loop WITHOUT ever DOUBLING BACK.

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16
Q

4 basic areas for workflow pattern

A

Dirty->clean->sterile->storage

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17
Q

Contaminated area

A

All soiled instruments are brought into the contaminated area.

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18
Q

Holding solution (NOT PART OF STERILIZATION)

A

Used when we don’t have time. Have a kid and be labeled with chemical label and biohazard label also should be changed TWICE daily or more frequently if clouded.

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19
Q

Preceding and packaging instruments (3 ways) HUI

A

There’s hand scrubbing, ultrasonic cleaning, or instrument washing machines.

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20
Q

Hand scrubbing, least desirable

A

Wear PPE, clean 1 or 2 instruments at a time with a long handled brush. Keep above water line and allow to air dry or pat until dry with a thick towel.

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21
Q

Ultrasonic cleaning, loosens and removes debris from instruments.

A

Works by producing sound waves that cause cavitation. instruments should be processed until they are VISIBLY clean, should only use specifically formulated ultrasonic solutions as a cleaner.

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22
Q

Care of ultrasonic cleaner, should wear PPE.

A

Solution is highly contaminated and should be discarded at least once a day or if cloudy.

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23
Q

Care of ultrasonic cleaner when cleaning the lid and pan

A

Should be rinsed with water, disinfectant, rinsed again, and dried

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24
Q

Testing the ultrasonic cleaner

A

5x5-inch sheet of lightweight aluminum foil vertically half submerged in fresh unused solution. Run 20 secs, should have leveling or rips over whole surface and no more than half an inch without pebbling.

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25
Automated washers and disinfectants
Use a combination of very HOT water recirculation & detergents to remove organic material. Automatically dried and must be wrapped and sterilized before use on patient. (Classified as THERMAL DISINFECTORS)
26
Drying,lubrication,and corrosion control (rust inhibitors help reduce rust)
Instruments/bits made of carbon steel still rusty drying steam sterilization. Alt. To dry using dry heat or unsaturated chemical vapor. Hinged instrument MAY need to be lubricated.
27
Packaging instruments
Should be wrapper or packaged before sterilization to protect them from contamination after sterilization.
28
Packaging materials
cassettes and packaging materials have to be approved by the FDA
29
Reusing wraps (DONT)
Can cause loss of chemical indicator Insecure sealing Might not stay sterile after processing
30
Methods of sterilization
Steam sterilization Unsaturated chemical vapor sterilization Dry heat sterilization
31
Sterilization destroys what and heat for what
All microbial forms including bacterial spores. Use heat if comes in contact with blood, saliva, or mucous membrane.
32
Autoclaving
Packaging must be porous enough to permit steam to penetrate the instruments inside and may cause corrosion.
33
Operation cycles, 4 cycles. He still does dishes
Heat up cycle Sterilization Depressirization Drying
34
Chemical vapor sterilization
Like autoclaving but uses a combination of chemicals instead of water. Pressure (20 psi) twmp (270f)(20 to 40 mins)
35
Advantages and disadvantages of chemical vapor sterilization
Ad. Doesn’t rust, dull, or corrode metal instruments. Dis. Formaldehyde and methyl alcohol smells like rotten eggs
36
Dry heat, requires higher temp than steam or chemical vapor sterilization
Heats up air and transfer heat to instruments. Will not rust if dried before places inside.
37
Flash sanitization, rapid Heat transfer for Steen
If unwrapped were placed in the chamber, it compromises the sterility when removed
38
Chemical liquid sterilization
High-level disinfectant
39
Static air sterilizer, not commonly used
Takes one to two hours, and it might not be done, correct Due to time consuming and may not, and if the operator makes errors and calculating the correct processing time
40
Forest area, sterilizer circulates, hot air through the chamber at high velocity
Rapid transfer of heat energy from the Earth to the instruments ranges from six minutes for unpackaged 12 minutes for package
41
Sterilization assurance three different processes to monitor sterilization. PCB
Program to ensure that the sterilization process is actually effective processes are physical indicators, chemical indicators, and biological indicators
42
Physical indicators, four cycle factors
Level solution, temperature, pressure, time
43
Chemical indicators there’s two types
External and internal involves the use of heat sensitive chemical, which changes color to types, process INDICATORS , and process INTEGRATORS
44
Process integrators inside/internal
Respond to pressure or temperature and time examples, strips, tabs or tubes. This ensures sterilization agent penetrates the package.
45
Process indicators external
Examples, autoclave, tape, and color change markings on package or bag identifies is exposed to a Certain temp doesn’t measure duration or pressure useful in distinguishing Between packages that were processed and ones that wrrent
46
Limitations of process indicators in integrators
Doesn’t indicate if sterilized correctly
47
Biological monitoring, which should be done weekly
Spore testing approved by the CDCADA and 0SAP to our place inside instrument packs and sterilizer is operated under normal conditions a third strip is set aside as a control
48
Sterilization, failures, improper, cleaning, or packaging And sterilizer malfunction
Stamford day in case there was a sterilizer Failure and we can re-sterilize the instruments from that day and the day before
49
Sterilizer maintenance manufactures, will provide instructions for the operation and care of their product
Must undergo daily and periodic maintenance to insure, accurate and reliable operationt
50
Transport
take dirty instruments safely to the sterilization area. Wear PPE
51
Cleaning
Remove debris with ultrasound cleaner or instrument washer. If can the cleaned right away put in holding solution( not a part of the step)
52
Packaging
wrap or bag instruments for sterilization. Place indicator inside the package next to the instruments. If not visible place external indicator.
53
Sterilization
Load sterilizer, according to the manufacturers instructions do not overload place Packages on their side/edges. Hello packages to cool you for removing them
54
Storage
Keep instruments in a clean dry environment them and change the integrity of the package rotate packages so that those with all the sterilization date will be used first
55
Delivery
bring sterile packages to treatment room
56
Quality assurance program
test & record that sterilization worked
57
Unsaturated chemical vapor
Ad. Short time, good penetration of steam, and commonly used in dental ogfices
58
Dry gear over type (static air)
Ad. No corrosion, can use closed containers, and terms are dry after cycle
59
Rapid heat transfer(forced air)
Ad. Very fast, no corrosion, items are dry after cycle
60
The method of sterilization that uses glutaraldehyde over a long period of time is Referred to as
Chemical Liquid Sterilization
61
The fastest method of sterilization is
Auto clave
62
The method of sterilization that produces the greatest risk for rust and corrosion is
Auto clave
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