Ch. 1-2
What is the shape of bacillus?
Rod-shaped
That period of an infectious disease between the initial infection and the time when the first symptoms occur is called the
incubation stage
Which pathways of cross-contamination is the main pathway prevented when instruments are cleaned and sterilized?
Patient to patient
Which type of mask did the CDC recommend during COVID?
N95 respirator
How many patients can you use a plastic disposable high-volume evacuator tip on?
1
Which type of microbe is the most difficult to kill?
Endospores
The vaccine for hepatitis B also protects against
Hepatitis D.
The manufacturing of medical devices like sterilizers is regulated by what U.S. agency?
Food and Drug Administration (FDA)
Before surgery when rinsing your hands after washing, how should your hands be positioned
Kept up with the water dripping off the elbow
Which type of protective barriers are to be worn when disinfecting a surface?
Utility gloves, mask, protective clothing, protective eyewear
What would prevent the growth of an obligate anaerobe?
Adding oxygen to the environment
What are special proteins that are made by the body after a microbe invades the body and that can destroy that microbe?
Antibodies
What is the best way to evaluate performance of hand hygiene by the office staff?
Observe the staff performing hand hygiene.
Which glove type can be washed and reused?
Utility gloves
If using an independent water reservoir on a dental unit to deliver good quality treatment water, how often should the bottle be removed and cleaned?
Daily
Thrush is caused by
Candida albicans.
The mode of microbe transmission that involves a contact with a contaminated instrument is called
Indirect contact
If you are working in a private dental office and your employer says that you must buy your own gloves, which agency should you file a complaint with?
OSHA
What is the most common form of skin reaction to gloves?
Irritant contact dermatitis
What is the maximum number of microbes CDC states should be in dental unit water used for patient treatment?
500 CFU/mL
What is the correct temperature and time for the microbial killing method referred to as pasteurization.
63°C for 30 minutes or 72°C for 15 seconds
A vaccine is available for which types of hepatitis?
Hepatitis B and hepatitis A
Which governmental agency regulates disinfectants?
Environmental Protection Agency (EPA)
What is the ingredient in hand-rubs that can be used without rinsing?
If you properly use surface covers on clinical contact surfaces at chairside for each patient, what step is not necessarily necessary?
Cleaning and disinfecting those surfaces between patients