DA 115 IC

What is an accepted time limit for hand washing hygiene?

At least 15 seconds

The chemical disinfectant classified as an intermediate-level agent no longer recommended for use in dental offices is known as:

sodium hypochlorite

The regulatory agency whose role it is to issue specific standards to protect the health of employees in the United States is:

OSHA

Hand washing guidelines recommend that you:

Wash your hands before you put on gloves and immediately after you remove gloves.

The written exposure control plan that describes how the dental office complies with the Blood-borne Pathogens Standard must be reviewed and updated:

annually.

The ultrasonic cleaner cleans dirty instruments using sound waves, which cause:

sonic vibrations.

The current infection control guidelines of the Office Safety and Asepsis Procedures Research Foundation (OSAP) recommend that clinical surfaces be classified and maintained under the categories of:

splash, spatter, and droplet. touch. transfer.

Dental team members can reduce their exposure to the dental unit water by using:

the HVE, masks, protective eyewear, and/or face shields.

The law designed to protect employees against occupational exposure to bloodborne disease-causing organisms such as HBV, HIV, and HCV is:

the OSHA Bloodborne Pathogens Standard.

The CDC Guidelines recommend that _____ not be worn at work because of the possibility of puncturing examination gloves and because of microorganisms that thrive around the cuticles.

rings,fingernail polish ,artificial nails

After instruments have been through the cleaning cycle of the ultrasonic cleaner, they should be

rinsed with clear water

Surface barriers:

should be removed and discarded between patients while you are still gloved.

When a surface has been covered with a barrier, it:

should still be cleaned and disinfected at the beginning and end of each workday.

The benchmark for the effectiveness of a surface disinfectant is the "kill time" for:

tuberculosis.

What can cause the sterilization process to fail?

Improper instrument cleaning, Improper packaging, Sterilizer malfunction

Which of the following may be used as a surface disinfectant in the dental office?

Iodophors

Which of the following is correct about ultrasonic cleaner solution?

It is highly contaminated,It should be discarded at least once a day, It becomes visibly cloudy when needing to be changed

Chemical liquid sterilization requires at least ___ hour(s) of contact time for sterilization to occur.

10

Manufacturers of sterilizers (autoclaves) set them to reach a maximum steam temperature of ___ degrees Fahrenheit and pressure of ___ pounds per square inch (psi).

250; 15 to 30

11) Which of the following may be used as surface barrier material?

A plastic bag, Plastic wrap, Sticky tape

Antiseptic is:

A substance that inhibits the growth of bacteria

Which of the following statements is true concerning cleaning and disinfection of the dental unit and environmental surfaces?

An intermediate-level disinfectant is recommended.

The advantages of self-contained water reservoirs include which of the following?

Both dental personnel can select the quality of water used and maintenance of the water system is under the control of the dental staff are advantages of self-contained reservoir systems.

The Guidelines for Infection Control in Dental Health-Care Settings—2003, which is now the standard of care, was released by what agency?

CDA

Which environmental surfaces must be cleaned and decontaminated more rigorously?

Clinical contact surfaces

The classifications of patient care items include which of the following?

Critical, Semicritical, Noncritical

Dental handpieces should always be lubricated and flushed before and after sterilization.

False

Sterilization monitoring may be accomplished using which process?

Physical monitoring, Chemical monitoring, Biologic monitoring

The purpose of a holding solution is to:

Prevent the Drying of Blood and debris on instruments

Recommended methods for sterilizing dental handpieces include which of the following?

Steam and chemical vapor sterilization

Which disease is transmitted through a wound or puncture from a soiled instrument and affects the nervous system?

Tetanus

Why are instruments bagged before sterilization?

To protect them from becoming contaminated after sterilization and to allow them to be grouped into special setups by procedure

All reusable critical and semicritical instruments that come in contact with the patient's blood, saliva, or mucous membranes must be heat-sterilized.

True

The Centers for Disease Control and Prevention (CDC) and the Occupational Safety and Health Administration (OSHA) are the two federal agencies that play important roles in infection control in dentistry.

True

The study of viruses and their effects is called:

Virology

In the chain of infection, a person who is unable to resist infection by a particular pathogen is known as:

a susceptible host

Sterilization destroys:

all microbial forms, including bacterial spores

The ultrasonic cleaner should be cleaned and disinfected:

at least once a day.

13) Precautions that should be followed when using glutaraldehyde include:

avoiding the fumes. always rinsing instruments thoroughly before using them on patients. wearing PPE to protect the eyes, skin, and lungs.

To cause disease, enough microorganisms are needed to overwhelm the body's defenses. The number of pathogenic microorganisms may be related to the amount of:

bioburden

The CDC term standard precautions applies to contact with:

blood, non-intact skin,all body fluids, secretions, and excretions.

Pathogens that are carried in the blood and body fluids of infected individuals and that can be transmitted to others are referred to as:

bloodborne

Disinfectants used in dentistry must:

both be registered with the Environmental Protection Agency (EPA) and be registered as hospital disinfectants with tuberculocidal claims.

To temporarily reduce the microbial count and to help clean the handpiece waterlines, DUWLs should be flushed:

both for 20 to 30 seconds between patients and every morning for several minutes.

Ultrasonic cleaners are used to:

both loosen and remove debris from instruments and reduce risk of hand injury from cuts and punctures that can occur with hand scrubbing.

The purpose of precleaning a surface is to:

both to reduce the number of microbes and to remove blood, saliva, and other body fluids.

To minimize surface contamination from splash, spatter, and surface droplets, the surface should be:

cleaned once a week and surface barriers should be used.

Acceptable types of barriers include:

clear plastic wrap, plastic bags, and tubing and plastic-backed paper.

While transporting and processing contaminated patient-care items, the dental assistants can be exposed to microorganisms through:

contaminated instruments. percutaneous injury. contact with the mucous membranes of the eyes, nose, or mouth.

The most common route of disease transmission in the dental office is through:

direct contact with the patient's blood or saliva.

Chemicals that destroy or inactivate most species of pathogenic microorganisms on inanimate surfaces are called:

disinfectants.

The CDC _____ recommend a routine booster of the HBV vaccine.

does not

When handling film with barrier envelopes, the barrier envelopes are opened with _____ hands and the films unwrapped with _____ hands.

gloved; nongloved

The correct order for removing PPE is to first remove the

gloves

The least desirable method of pre cleaning dental instruments is:

hand scrubbing.

Within a steam autoclave, the _____ cycle precedes the _____ cycle.

heat-up; sterilizing

Transmission of a disease to a susceptible person by handling contaminated instruments or by touching contaminated surfaces is a form of:

indirect transmission

When immunity is present at birth, it is called _____ immunity.

inherited

To understand the difference between disinfection and sterilization, we know that disinfection is:

intended to kill disease-causing microorganisms remaining on surfaces after pre-cleaning.

Sterilization errors would include:

none of the above

Housekeeping surfaces:

only need to be cleaned with a detergent or low-level disinfectant.

To prevent contamination of a clean instrument or any object handled during treatment, _______ should be worn.

overgloves

When transporting and processing contaminated patient care items, the dental assistant can be exposed to microorganisms through _____.

percutaneous injury or contact with mucous membranes of the eye, nose, or mouth.

CDC guidelines and the OSHA Blood-borne Pathogen Standard consider saliva to be a:

potentially infectious body fluid.

As a dental assistant you are placing instruments into the instrument package, and the explorer tears a hole in the package.

use a new instrument package.

The CDC recommendations for environmental infection control concerning clinical contact surfaces suggest:

using surface barriers to protect clinical contact surfaces. using barriers on difficult-to-clean surfaces. changing barriers between patients

Personal protective equipment (PPE), including _____, must always be used when processing instruments.

utility gloves, a mask, eyewear, and protective clothing

A product capable of killing some viruses should be labeled:

virucidal.

1) The chain of infection consists of four parts, including:

virulence, number of microorganisms, portal of entry, and susceptible host.

The strength of an organism in its ability to produce disease is:

virulence.