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Quiz 4 > Dental Assistant Quiz 4 > Flashcards

Dental Assistant Quiz 4 Flashcards

1
Q

To minimize environment chemical contamination, the operator should

A

Follow all applicable osha and cdc guidelines

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2
Q

Best method of preventing transmission of the hepatitis c virus in dhcp

A

Use of PPE

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3
Q

Allergies to bananas, avocados and kiwi may indicate a possible allergy to

A

Latex

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4
Q

Regarding bacterial contamination of dental unit waterline

A

Bacteria can be transmitted to patient through waterlines

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5
Q

The best method of preventing herpetic conjuntivitis amond dhcp is to

A

Wear protective eyewear

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6
Q

Coming into contact which of the following most likely to cause spread of herpes virus

A

Lesion

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7
Q

Which of the following would not be considered an exposure incident?

A

Puncture with an unused needle (pinchar con una aguja no utilizada)

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8
Q

When steam autoclaving instrument packing minimum recommended temperature is

A

250 degrees F (121 degrees C) for 30 min

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9
Q

During sterilization, if steam condensation is on the edge of the autoclave door, this could indicate

A

A defective gasket (una junta defectuosa)

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10
Q

Cleaning surfaces prior to disinfection is to

A

Reduce the concentration of pathogens

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11
Q

Tuberculocidal activity occurs with approach

A

Disinfection

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12
Q

When should HBV vaccinations be offered to new employees?

A

Within 10 days of hire

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13
Q

Which of the following is classified by OSHA as a hazardous material because it causes burns and possible sloughing of tissue?

A

Acid etch solution

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14
Q

Which of the following must be done if a health care worker receives a puncture from a contaminated sharp?

A

The source patient should be informed of the incident and asked to be tested for HIV, HBV and HCV infection

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15
Q

Which of the following documents is required of all dental offices using hazardous chemicals?

A

Hazard communication plan

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16
Q

Which type of microorganism is MOST difficult to destroy?

A

Bacterial spores

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17
Q

In MOST dental settings, health care workers are at greatest risk of contracting

A

Hepatitis A

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18
Q

Mask used routinely by dental professionals are able to

A

Filter out the majority of airborne particles

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19
Q

Which of the following is considered a bloodborne virus?

A

Hepatitis C

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20
Q

Infection with Mycobacterium tuberculosis requires

A

An immunocompromised host

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21
Q

Which of the following is considered a noncorrosive form of sterilization?

A

Dry heat

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22
Q

What method does the CDC recommend to determine that sterilization has occurred?

A

Use of biological monitors

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23
Q

Two substances that commonly INACTIVATE many chemical disinfectants are

A

Soap and Organic Matter

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24
Q

Which of the following is an effective method for reducing the amount of aerosolization in the dental operatory?

A

High volume evacuation

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25
Q

The CDC recommends that a disinfectant

A

Being tuberculocidal

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26
Q

The OSHA Bloodborne Pathogens Standard requires that all employees at risk of occupational exposure receive a training program on bloodborne pathogens at least

A

Annualy

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27
Q

Which of the following is a possible side effect a of exposure to glutaraldehyde

A

Severe eye irritation

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28
Q

The BEST method to determinate if a product contains a specific hazardous chemical is to

A

Review the product’s MSDS

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29
Q

When working with 2% or 3.4% glutaraldehyde the DHCP should

A

Work in a well ventilation area

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30
Q

A person who is immune to hepatitis B would develop

A

Hepatitis D

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31
Q

Contaminated surgical instruments used positive patient should be HIV

A

Immersed in glutaraldehyde for 10 minutes

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32
Q

Washing hands with antimicrobial hand soap will

A

Reduce the number of microbes

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33
Q

PPE (personal protective equipment) is appropriate for dental healthcare training personnel because

A

Gloves and mask provide protection spatter injuries of blood and/or saliva

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34
Q

What mode of transmission is MOST likely the spread of tuberculosis

A

Respiratory aerosol

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35
Q

Operatory safety is improved with regard to sterile/bagged critical instruments by

A

Packaging prior to sterilization

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36
Q

How often should CHEMICAL indicators be used in sterilization cycles?

A

At every cycle

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37
Q

How often does CDC recommend that sterilizers be monitored for proper functioning?

A

At least weekly

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38
Q

Which of the following is indicated for use as surface disinfectants?

A

Alkaline glutaraldehyde

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39
Q

The PRIMARY problem with the daily use of sodium hypochlorite solution (cloro) as a surface disinfectant is that

A

May cause corrosion of metals

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40
Q

Who is considered responsible for ensuring that an employee uses appropriate personal 45. A protective equipment?

A

The employer

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41
Q

An assistant receives a needle-stick from sterile needle. According to the OSHA Bloodborne Pathogens Standard, this

A

Is not considered and exposure incident

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42
Q

According to OSHA Bloodborne Pathogens Standard, an employee’s medical record must include

A

Whether or not the employee refused the HBV vaccination

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43
Q

A dental assistant was recently suspected of having activate Mycobacterium tuberculosis and was referred to a physician for further evaluation. The dental assistant may return to work after the dental assistant has

A

Been declared by a physician as being no longer infectious

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44
Q

Appropriate infection control procedures do NOT include

A

Bulk dispensing of disposable supplies

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45
Q

What is the primary function of the nitrous oxide / oxigen scavenging system?

A

Helps remove waste gas from the operatory

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46
Q

The principal reason for using barriers is that they

A

Reduce the possibility of aerosol cross to contamination

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47
Q

A method to improve dental unit water quality includes

A

Controlling biofilms in tubing

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48
Q

Which of the following is a true statement about hepatitis B?

A

Can be transmitted from patient to patient

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49
Q

How should instrument packages be loaded into the autoclave?

A

Loosely to allow air circulation

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50
Q

What is the BEST method to prevent rust on instruments during dry heat sterilization?

A

Dry instruments before placing in sterilizer

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51
Q

When selecting a surface disinfectant, the product must be registered by which agency?

A

EPA

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52
Q

Which of the following is true regarding use of alcohol as a cleaner/disinfectant?

A

It is not recommended because of its rapid evaporation

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53
Q

What step should be taken to minimize the bio hazard associated with using a 2%-3.4% glutaraldehyde solution

A

Wear utility gloves and protective eyewear

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54
Q

What is the minimum length of time that OSHA recommended that safety training records be kept?

A

3 years

55
Q

Studies have indicated that spontaneous abort and fetal loss have occurred when one or both partners have an occupational exposure to

A

Mercury

56
Q

Release of toxic fumes is a PRIMARY hazard of which of the following?

A

Methylmethacrylate monomers

Monómeros de metacrilato de metilo

57
Q

The MOST desirable characteristics of an evacuee system cleaner is

A

Low-sudsing

58
Q

All of the following may be symptoms of active tuberculosis EXCEPT

A

Skin rash

Erupción cutánea

59
Q

Antiseptics differ from disinfectants in that ls the antiseptics

A

Are applied onto living tissues

60
Q

Personal protective clothing for the dental healthcare team should be

A

Made from fluid proof material

61
Q

If the patient’s medical history reveals that he is allergic to latex, what type of gloves are BEST to wear during the routine? Treatment of this patient?

A

Nitrile

62
Q

Which of the following microorganism is NOT transmitted by a needle stick or cut from contaminated instrument?

A

HAV hepatitis A

63
Q

Which of the following is considered an effective method of killing spores?

A

Unsaturated chemical vapor

64
Q

Which of the following is considered a DISADVANTAGE in the use of the autoclave as a sterilizing system?

A

Instruments cutting surfaces and burs may become dull

65
Q

Surfaces to be disinfected after each patient treatment include all of the following EXCEPT

A

Dental unit lights

66
Q

The proper technique for decontaminating operatory surfaces is to

A

spray- wipe- spray

Rociar -limpiar- rociar

67
Q

According to the OSHA Hazard Communication Standard, the employer must ensure a safe working environment by providing

A

Yearly OSHA training

68
Q

A new at-risk employee initially declines an HBV vaccination. Later the employee request to be vaccinated. What is the employer’s responsibility? The employer

A

Must pay for the vaccination

69
Q

The MOST important reason why 2 or 3.4% glutaraldehyde should NOT be used as a surface disinfectant is because it

A

May damage surfaces

70
Q

What personal protective equipment should be used when replenishing X-ray processing solutions?

A

Protective eyewear

71
Q

Symptoms of an irritant contact dermatitis caused by an allergic reaction to latex commonly includes

A

Dry, cracked skin

72
Q

According to the 2003 CDC Guidelines, vaccine induced antibodies decline over time and 60% of persons who initially respond to vaccination will

A

Lose all antibodies within 10 years

73
Q

Generally, vaccination for HBV includes three injections with the first two being given

A

4 week apart

74
Q

An example of a housekeeping non-critical environmental surface would be

A

Floor, walls, and sinks

75
Q

For SURGICAL procedures when hands are not visibly soiled, which of the following decontamination methods is sufficient?

A

An antimicrobial soap and water

76
Q

An alcohol-based hand scrub is used after wash hands for which type of procedure?

A

Extraction

77
Q

When applied to the skin, an alcohol-based is classified as “rapidly germicidal” if it contain

A

Triclosan

78
Q

According to CDC, the minimum time for ROUTINE hand wash is

A

15 seconds

79
Q

When hand are visible free of blood or soil, an alcohol-base hand scrub should be used

A

Before and after each patient

80
Q

A dental assistant’s natural fingers nails should kept

A

Shorter than a quarter of an inch

81
Q

Which is true of disposable face masks? They should

A

Have a moisture-resistant surface to minimize wicking

82
Q

Clinical contact barriers should be replaced

A

Between patients

83
Q

The fundamental reason for the use of gloves during patient care is that

A

It provides worker protection

84
Q

Fever and productive cough are indicative of which of the following conditions?

A

Tuberculosis

85
Q

According to CDC to the 2003 CDC Guidelines, the water quality standard for routine dental treatment is

A

200 cfu/mL

86
Q

According to the 2003 CDC Guidelines, the water quality standard for surgical procedure is

A

Sterile water

87
Q

What is the MOST likely cause of sterilization failure?

A

Operator error

88
Q

If the proper length of time is used, which of the following is capable of sterilization heat sensitive items at room temperature by immersion?

A

Glutaraldehyde

89
Q

Which of the following organism is MOST resistant to chemical disinfection?

A

Mycobacterium tuberculosis

90
Q

Which of the following is acceptable for sterilizing high speed handpiece?

A

Heat process according to manufacturer’s directions

91
Q

What does a “positive” sterilization biological is monitor report indicate?

A

Load was not sterile

92
Q

The CDC requires periodic verification of proper functioning of sterilizers with which of the following?

A

Biological monitors

93
Q

Biological monitors are used to

A

Validate that the process killed live spores

94
Q

Which of the following is true of synthetic phenols?

A

Intermediate-level disinfectants

95
Q

Prior to disinfection a non porous contaminated surface can be cleaned with

A

Glutaraldehyde

96
Q

When should contaminated equipment be decontaminated?

A

As soon as the patient is dismissed

97
Q

The major DISADVANTAGE of using sodium hypochlorite as a disinfectant is that it can

A

Corrode metal

98
Q

During operatory clean-up, what type of gloves is required by OSHA?

A

Utility

99
Q

Contaminated barriers should be discarded while the patient is still seated and the assistant is wearing

A

Exam gloves

100
Q

When does the OSHA Bloodborne Pathogens Standard require face masks to be worn

A

At all times

101
Q

An example of an engineering control is

A

OSHA compliance manual

102
Q

The symbol indicates (*)

A

A biohazard

103
Q

The term “standard/universal precautions” means

A

All disease are standard/universally are dangerous to health care workers

104
Q

In most dental settings, health care workers are greatest risk of contracting

A

Hepatitis B

105
Q

Which of the following is required of a new employee?

A

She/he should be required to study the OSHA manual within the first 10 days of employment

106
Q

Which of the following is considered “regulated waste” by the EPA

A

Used suture needles

107
Q

If the operator suspects a malfunction in the X-ray equipment, what is the FIRST thing to be done?

A

Stop using the equipment

108
Q

When an individual receives a hepatitis B immunization, the substance INJECTED into the body is considered a/an

A

Antigen

109
Q

After an employee has received initial employment assignment appropriated training, when must an employer and received make a hepatitis B vaccination available?

A

Within 10 working days

110
Q

What must be done when a patient reveals HIV positive status?

A

The dental team must follow the infection control procedures as applied for all patients

111
Q

According to the OSHA Bloodborne Pathogens Standard, the dentist/employer must

A

Develop an exposure control plan

112
Q

OSHA’s role in the dental office is to protect the

A

Employee

113
Q

Is a product contains a hazardous chemical, whose responsibility is it to prepare a MSDS?

A

Manufacturer

114
Q

Which of the following is true of HIV infected patient

A

Should be treated at the end of the day

115
Q

According to OSHA Bloodborne According to Pathogens Standard, the written exposure control plan must be updated at least

A

Once a year

116
Q

Which of the following list the stages of biofilm formation in the correct sequential order?

A

Initial attachment, accumulation, and release

117
Q

Which of the following organizations supervises and regulates the practice of dentistry?

A

State Board of Dentistry

118
Q

High volume evacuation may be used to

A

Remove water during cavity preparation

119
Q

The most common oral manifestation of HIV infection is

A

Candidiasis

120
Q

During a fire drill, patients are escorted out of the office. What safety measure must be followed on the way out?

A

Close doors

121
Q

If a patient’s medical history reveals that the patient is allergic to latex, which type of gloves is best suited for use during routine treatment of this patient?

A

Vinyl

122
Q

Instruments that penetrate a patient’s skin should be:

A

Sterilized

123
Q

Which of the following liquids is used in an autoclave to sterilize instruments and supplies?

A

Distilled water

124
Q

Which precautions means that all patients are treated as if they are infectious?

A

Universal

125
Q

The series of components that lead to infection are referred to as the:

A

Chain of infection

126
Q

When the chain of infection is broken a/an:

A

Infection is prevented from happening

127
Q

Which agency is a regulating body that enforces requirements that employers must protect their employees from exposure to blood and other potentially infectious materials?

A

Osha

128
Q

Which agency regulates manufacturing and labeling of medical devices the and solutions?

A

FDA

129
Q

Which agency regulates the disposal of hazardous waste as well as the safety and effectiveness of disinfecting and sterile solutions?

A

EPA

130
Q

This type of transmission involves the physical transfer of an agent from an infected person to an uninfected person through direct contact

A

Contact transmission

131
Q

The rheostat is used to:

A

Control the speed of the handpiece

132
Q

HBV and HIV pose a risk to all medical personnel. Unfortunately, patient infected with either of these contagious diseases are asymptomatic meaning:

A

They have no symptoms

133
Q

This solution is a preservative and is used to prevent oxidation and increase the life span of the developing solution.

A

Elon

134
Q

Safety guard, utility goves, and commercial acid spill clean-up kit should be employed when handling:

A

Mercury

Quiz 4 (1 decks)

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