Dental Assistant Final Exam Questions Solved
Accurately
When taking blood pressure, the exhaust valve should be released at a rate of: - CORRECT
ANSWER✅✅✅2-3mm Hg per second
A normal adult respiration rate is: - CORRECT ANSWER✅✅✅10-20 breaths per minute
The appearance of free gingiva is: - CORRECT ANSWER✅✅✅Stippled
The depth of a normal gingiva sulcus is: - CORRECT ANSWER✅✅✅2-3mm
Before pulp testing, the teeth should be: - CORRECT ANSWER✅✅✅Dried
What are the benefits of a correctly placed rubber dam? - CORRECT
ANSWER✅✅✅Increased efficiency of the dental team, driest operating field possible, and
soft tissue retraction
What is used as a matrix for a class III restoration? - CORRECT ANSWER✅✅✅Celluloid
(clear) Band
Which of the following medications are used for treating angina pectoris? - CORRECT
ANSWER✅✅✅Nitroglycerin
The term "sharps" includes what items? - CORRECT ANSWER✅✅✅Burs and endodontic
files, Dental arch wires and needles
What would NOT be considered an exposure incident? - CORRECT ANSWER✅✅✅Stick
with a sterile needle
,OSHA requires that the Hepatitis B vaccine be offered to which category of employees? -
CORRECT ANSWER✅✅✅Category I (clinical) and category II (cross trainer)
OSHA assumes the responsibility for the protection of who? - CORRECT
ANSWER✅✅✅The employees only
Which items would require a "biohazard" label? - CORRECT ANSWER✅✅✅Sharps
container, contaminated laundry container, and contaminated instrument container
A person who does computer billing in the dental office and rarely comes in contact with the
treatment areas or touches any contaminated items is considered to be in which category of
employees? - CORRECT ANSWER✅✅✅Category III
Agents that prevent the growth or action of microorganisms on living tissue are called what? -
CORRECT ANSWER✅✅✅Antiseptics
What is true of glutaraldehydes? - CORRECT ANSWER✅✅✅Not able to be biologically
monitored, not good for surface disinfecting, and classified as a disinfectant and a sterilant
What is true of sodium hypochlorite (Household bleach)? - CORRECT ANSWER✅✅✅Has
a strong odor and is corrosive to come metals, irritating to the eyes, and is not EPA registered
What is true of iodophor disinfecting solutions? - CORRECT ANSWER✅✅✅Inactivated by
hard water, intermediate level disinfectant, and used for disinfecting surfaces
What are critical instruments? - CORRECT ANSWER✅✅✅Needles, cutting instruments,
and blades
To be considered acceptable for use in dentistry, a chemical must be able to kill what? -
CORRECT ANSWER✅✅✅Tuberculosis bacteria
, Which chemicals are capable of causing a severe tissue reaction? - CORRECT
ANSWER✅✅✅Glutaraldehydes
Which disinfectant is LEAST effective on dried blood or saliva? - CORRECT
ANSWER✅✅✅Alcohol
In what position should instruments with hinges be placed in the unsaturated chemical vapor
sterilizer? - CORRECT ANSWER✅✅✅With hinges open
What sterilization error will NOT result in a failure of sterilization? - CORRECT
ANSWER✅✅✅Failure to use a process indicator
True or False: Pregnancy should NOT be considered a contraindication to taking the hepatitis B
vaccine - CORRECT ANSWER✅✅✅True
Dental personnel in the dental office can be exposed to infectious disease through: - CORRECT
ANSWER✅✅✅Direct contact, indirect contact, aerosol, splatter, and splashes, and
contaminated operatory equipment
An instrument that touches the mucous membranes but will not penetrate soft tissue or bone is
classified as: - CORRECT ANSWER✅✅✅Semi-critical
To achieve sterilization when using glutaraldehyde solutions, the instruments must remain
immersed for at least: - CORRECT ANSWER✅✅✅10 hours
Being resistant to the harmful effects of a microbe is called: - CORRECT
ANSWER✅✅✅Immunity
Which disinfectant chemical tends to cause a yellow stain? - CORRECT
ANSWER✅✅✅Iodophor
Accurately
When taking blood pressure, the exhaust valve should be released at a rate of: - CORRECT
ANSWER✅✅✅2-3mm Hg per second
A normal adult respiration rate is: - CORRECT ANSWER✅✅✅10-20 breaths per minute
The appearance of free gingiva is: - CORRECT ANSWER✅✅✅Stippled
The depth of a normal gingiva sulcus is: - CORRECT ANSWER✅✅✅2-3mm
Before pulp testing, the teeth should be: - CORRECT ANSWER✅✅✅Dried
What are the benefits of a correctly placed rubber dam? - CORRECT
ANSWER✅✅✅Increased efficiency of the dental team, driest operating field possible, and
soft tissue retraction
What is used as a matrix for a class III restoration? - CORRECT ANSWER✅✅✅Celluloid
(clear) Band
Which of the following medications are used for treating angina pectoris? - CORRECT
ANSWER✅✅✅Nitroglycerin
The term "sharps" includes what items? - CORRECT ANSWER✅✅✅Burs and endodontic
files, Dental arch wires and needles
What would NOT be considered an exposure incident? - CORRECT ANSWER✅✅✅Stick
with a sterile needle
,OSHA requires that the Hepatitis B vaccine be offered to which category of employees? -
CORRECT ANSWER✅✅✅Category I (clinical) and category II (cross trainer)
OSHA assumes the responsibility for the protection of who? - CORRECT
ANSWER✅✅✅The employees only
Which items would require a "biohazard" label? - CORRECT ANSWER✅✅✅Sharps
container, contaminated laundry container, and contaminated instrument container
A person who does computer billing in the dental office and rarely comes in contact with the
treatment areas or touches any contaminated items is considered to be in which category of
employees? - CORRECT ANSWER✅✅✅Category III
Agents that prevent the growth or action of microorganisms on living tissue are called what? -
CORRECT ANSWER✅✅✅Antiseptics
What is true of glutaraldehydes? - CORRECT ANSWER✅✅✅Not able to be biologically
monitored, not good for surface disinfecting, and classified as a disinfectant and a sterilant
What is true of sodium hypochlorite (Household bleach)? - CORRECT ANSWER✅✅✅Has
a strong odor and is corrosive to come metals, irritating to the eyes, and is not EPA registered
What is true of iodophor disinfecting solutions? - CORRECT ANSWER✅✅✅Inactivated by
hard water, intermediate level disinfectant, and used for disinfecting surfaces
What are critical instruments? - CORRECT ANSWER✅✅✅Needles, cutting instruments,
and blades
To be considered acceptable for use in dentistry, a chemical must be able to kill what? -
CORRECT ANSWER✅✅✅Tuberculosis bacteria
, Which chemicals are capable of causing a severe tissue reaction? - CORRECT
ANSWER✅✅✅Glutaraldehydes
Which disinfectant is LEAST effective on dried blood or saliva? - CORRECT
ANSWER✅✅✅Alcohol
In what position should instruments with hinges be placed in the unsaturated chemical vapor
sterilizer? - CORRECT ANSWER✅✅✅With hinges open
What sterilization error will NOT result in a failure of sterilization? - CORRECT
ANSWER✅✅✅Failure to use a process indicator
True or False: Pregnancy should NOT be considered a contraindication to taking the hepatitis B
vaccine - CORRECT ANSWER✅✅✅True
Dental personnel in the dental office can be exposed to infectious disease through: - CORRECT
ANSWER✅✅✅Direct contact, indirect contact, aerosol, splatter, and splashes, and
contaminated operatory equipment
An instrument that touches the mucous membranes but will not penetrate soft tissue or bone is
classified as: - CORRECT ANSWER✅✅✅Semi-critical
To achieve sterilization when using glutaraldehyde solutions, the instruments must remain
immersed for at least: - CORRECT ANSWER✅✅✅10 hours
Being resistant to the harmful effects of a microbe is called: - CORRECT
ANSWER✅✅✅Immunity
Which disinfectant chemical tends to cause a yellow stain? - CORRECT
ANSWER✅✅✅Iodophor
