FREE NNAAP Infection Control Questions and Answers

Question 1

To avoid cross-contamination, when should the high-speed handpiece or air-water syringe be flushed with water?

Accepted Answer

After each patient

Answer

At the time of the lubrication

Answer

Once a day

Answer

Once a week

Question 2

The substance produced by the body in response to the hepatitis B vaccine is a/an

Accepted Answer

Antibody

Answer

Antigen

Answer

Virus

Answer

Bacterium

Question 3

Instruments can be pre-soaked in holding solution immediately after use to

Accepted Answer

Prevent drying of blood and organic matter

Answer

Kill bacterial spores

Answer

Safely use the instruments without further processing

Answer

Eliminate the need for ultrasonic cleaning

Question 4

Which of the following shows that the sterilization process was successful?

Accepted Answer

Spore tests

Answer

Readings on autoclave gauges

Answer

Timer indicates full cycle

Answer

Visual examination of heat indicating tape

Question 5

To prevent cross-contamination in the dental office, which of the following is true regarding the use of latex gloves?

Accepted Answer

Use a new pair of gloves with each patient

Answer

Wash gloves between patients

Answer

Disinfect gloves between patients

Answer

Autoclave gloves between patients

Question 6

The use of personal protective equipment is necessary because herpetic conjunctivitis can manifest in/on the

Accepted Answer

Eyes

Answer

Skin

Answer

Lungs

Answer

Tongue

Question 7

A medical laboratory report which states that a patient is HBeAg Pos and HBsAg Pos suggests that this person.

Accepted Answer

Is an infectious carrier of hepatitis B

Answer

Has never had a hepatitis B vaccination

Answer

Is currently being treated for hepatitis B

Answer

Is not considered a carrier of hepatitis B

Question 8

If rag wheels are to be reused, what would be the BEST means of decontamination?

Accepted Answer

Autoclave.

Answer

Spray with phenolic alcohol between uses.

Answer

Soak in glutaraldehyde

Answer

Wipe off with iodophor.

Question 9

Which of the following is an example of transmission via droplet infection?

Accepted Answer

Inhaling through mucous membranes

Answer

Contacting through breaks in the skin

Answer

Touching contaminated instruments

Answer

Using an unclean work area

Question 10

Controlling microbial contamination and infection is called:

Accepted Answer

Infection control

Answer

Sterilization

Answer

Disinfection of objects

Answer

Sanitization of a contaminated surface