apples

Biofilm often occurs in?

untreated dental unit waterlines

Extracted teeth containing amalgma should be?

disinfected using a high-level level disinfectant and disposed as hazardous waste

Which method is most effective in preventing contamination of the x-ray unit control panel?

changing barriers after each patient

Which type of hand barrier is appropriate for use while handling used sharp instruments during the cleaning and sterilization processes?

heavy-duty utility gloves

The CDC recommends which of the following standards for colony forming bacteria (CFU)/mL) in dental treatment water used for routine dental procedures?

Less than 500

Which of the following demonstrates an appropriate fill level for a sharps container?

3/4 full

According to the OSHA Bloodborne Pathogens Standard, employers must provide employees with education and training on the standard at least…?

annually

Which of the following is the best environmental infection control practices for clinical contact surfaces with irregular surfaces (e.g., switches, connections, etc)?

covering surface with fluid impervious barriers

Sterile surgical gloves sold in the US must meet the standards of which regulatory agency?

FDA

Sterilized instrument packages should be stored…?

in closed storage cabinets

Which of the following is included in an exposure control plan?

the evaluation of safety devices

According to the CDC, to reduce the contamination of cleaning solutions, reusable mops used on housekeeping surfaces should be?

cleaned and dried before reused

The main purpose of surgical hand antisepsis is to?

reduce the chance for contamination of the patient if the gloves become punctured or torn

What type of gloves should be worn to protect the hands of dental healthcare personnel during instrument processing and operatory cleanup?

utility housekeeping

A blood-soaked gauze is an example of a?

regulated or biohazardous waste

According to OSHA, appropriate protective eyewear must

have side shields

While cleaning contaminated instruments, an assistant receives a percutaneous injury to the finger. The assistant should FIRST

wash hands with soap and water

Which of the following is an infection control program evaluation document

exposure incident report

Gloves are single-use items that are intended to be used during the treatment of

no more than one patient

Which of the following viral infections can be prevented through immunization?

Hepatitis B

A person with a latent tuberculosis infection will…

have a positive skin test and no symptoms of active tuberculosis

The most severe outcome of latex allergy is..

anaphylaxis

Most microbes in the human mouth are

bacterial

Which of the following vaccine-preventable disease pose the greatest risk of transmission in a dental office setting?

Influenza

The majority of the spray produced by dental handpieces consists of

spatter

After completing the three-dose hepatitis B vaccination series, when should the vaccinated individual be tested for the proper antibody response?

in 1 to 2 months

Of the types of adverse associated with latex gloves, which has the most serious potential health consequences?

Type I hypersensitivity

A needlestick involving a used anesthetic syringe can lead to what type of microbial contact?

Indirect

Hepatitis D is a

coinfection with hepatitis B

Which of the following disease is caused by a bloodborne pathogen?

Hepatitis C

Patients with a history of an allergy to avocados or banana, are increased risk of an allergy to

latex

Instruments with the greatest risk of transmitting infection are

critical instruments

All dental healthcare personnel should have a tuberculin skin test

as a baseline, preferably upon hire

What does the Center for Disease Control and Prevention (CDC) recommend if a patient presents in a dental practice with symptoms of M. tuberculosis?

defer elective dental treatment until the physician confirms the patient is no longer contagious

The prevalence of hepatitis C infection among health care workers in the US is similar to that of the general population which is estimated to be

1-2%

Wearing a punctured glove during patient care may result in which type of microbial contact?

direct

Which of the following diseases can be prevented by immunization?

Hepatitis B

Immunization against influenza is administered

once a year

Reuse of a nonsterile explorer on the next patient can lead to what type of microbial contact?

indirect

To prepare for sterilization, the high-speed handpiece and reusable air-water syringe tip should be flushed with water

after each patient

According to the CDC, patient care items that penetrate soft tissue are categorized as

critical

When processing hinged instruments, it is best to place them in the sterilizer

open and unlocked

Which of the following verifies that sterilization process destroyed all microbes?

Negative spore test results

What are the three types of sterilization monitoring?

mechanical, chemical, and biological

The purpose of a holding solution is to

prevent hardening of debris and body fluids on instruments

Which of the following is indicators is placed inside every package of instruments prior to sterilization?

Chemical

The “dirty” area of the instrument processing area is used for instrument

cleaning

After steam sterilization (autoclaving), packs of instruments should be cooled and dried

inside the sterilizer

Between patients, what is the correct aseptic management of slow-speed handpiece attachments?

clean and sterilize

When using the dry heat sterilizer, timing of the sterilization cycle begins when the

correct temperature is reached

When instruments cannot be immediately cleaned, they can be placed in a holding solution to

prevent drying of blood and organic matter

A chemical indicator is placed inside each package of instruments to assess the

physical conditions necessary for sterilization

Sterile packaged instruments must be repackaged and resterilized when the

packaging material is compromised

To maintain the sterility of the instruments they must be

packaged prior to sterilization

What is the first step in instrument processing?

Cleaning

What type of cleaning machine is used to clean contaminated instruments prior to sterilization?

Ultrasonic

Which of the following is the first step in instrument processing?

Cleaning

The purpose of dating packages of sterilized instruments is to

retrieve packs in the event of a sterilized failure

Instrument cassettes should be wrapped

after cleaning and before sterilization

Biological indicators for monitoring an autoclave or an unsaturated chemical vapor unit contain spores of

Geobacillus Stearothermophilus

Overloading an autoclave may result in an

inability of steam to penetrate the materials

According to the CDC, biological indicators for assessing sterilization are to be used

weekly

Mechanical monitoring of the sterilization process should occur with

every load

Ultrasonic cleaning of instruments before sterilization is intended to

remove bioburden debris

During the sterilization process, how often should chemical monitoring be performed?

With every package of instruments

Sterilized instrument packages should be stored

in closed storage cabinets

Prior to sterilization, loose contaminated instruments are processed in an ultrasonic cleaner in order to

remove large debris

During instrument processing, the ultrasonic unit is intended to

clean instruments

What is the minimum temperature a steam sterilizer should reach to achieve sterilization?

121 degrees C

According to the CDC, how long should sterilization monitoring records be kept?

As required by state and local regulations

Which of the following organizations regulates sterilization packaging materials in the United States?

FDA

Which of the following steam autoclave settings and times are most effective for sterilization of wrapped instruments?

121 degrees C (250 degrees F) and 15 psi for 30 minutes

The OSHA (Occupational Safety and Health Administration) is the government regulating body concerned with

the health and safety of employees

Examination gloves that are contaminated with blood or other potentially infectious materials (OPIM) that could be released during handling should be discarded in what type of waste container?

Regulated

What is the length of time that employers must maintain Hazard Communication training records?

Training records are not required

According to OSHA, safety measures that should be taken when using bonding materials with potential chemical hazards must be found in a

Safety Data Sheet

Which of the following should be used as a work practice control in the handling of sharps dropped on the floor?

Hemostats, cotton pliers, or tongs

Which party is responsible for ensuring a Safety Data Sheet is available in the workplace for each hazardous material?

Employer

Who supplies the original Safety Data Sheets?

Chemical Manufacturer

Which of the following is recommended to minimize occupational exposure to atmospheric nitrous oxide?

Use a properly fitted nasal patient mask

According to the OSHA, safety measures that should be taken when using bonding materials with potential chemical hazards must be found in a

safety data sheet

Following an employee’s exposure to a patient’s blood from a needlestick injury, information must be provided to the evaluating healthcare professional that includes

a description of the exposed employee’s duties

An appropriate method of ensuring dental healthcare personnel immunizations are complete and current is to

conduct an annual review of personnel immunization records

Which of the following procedures help document a quality assurance program for infection control in the office?

recording results of sterilization monitoring procedures

Which of the following is an infection control program evaluation document?

exposure incident report

Which of the following PPE would best protect the dental healthcare personnel from conjunctivitis?

goggles

When conducting an infection control training program, the trainer must provide training in the

language of and at the literacy level of the employee

Which of the following statements most accurately defines engineering controls?

materials and devices that prevent employee exposure to hazardous or infectious substances

A dental assistant who recieves an accidental exposure on the skin from a contaminated source should first

wash the exposed skin with soap and water

After an exposure incident, the employer must provide the evaluating physician with a description of the

employee’s relevant job duties

Who is responsible for appropriate regulated waste disposal?

the generating facility

Who is responsible for the evaluation of hazardous chemicals?

chemical manufacturers and importers

What is the length of time that employees must maintain Hazard Communication training records?

Training records are not required

A program evaluation method for post-exposure management should include which of the following?

review of the plan with the dental team

According to the OSHA BBP Standard, a contaminated sharps container should be

puncture resistant and closable

According to OSHA, the proper laundering or disposal of outer personal protective clothing (lab coats, gowns, etc.) is the responsibility of the

employer

In a dental setting, the clinical supply refrigerator may be used for the preservation of:

bonding materials

High-level disinfectants should be used

according to the manufacturer’s directions

Work practice controls include the use of a

one-handed recapping techniques

Which of the following office training programs includes safety measures when using a hazardous chemical?

Written Hazard Communication