FREE EFDA Infection Control & Patient Safety Questions and Answers

Question 1

What is the primary purpose of wearing PPE (Personal Protective Equipment) in a dental setting?

Accepted Answer

To prevent cross-contamination and infection transmission.

Answer

To improve visibility during procedures.

Answer

To comply with office dress code.

Answer

To keep the dental assistant comfortable.

Question 2

Which of the following is the correct order for donning PPE?

Accepted Answer

Gown → Mask → Eyewear → Gloves

Answer

Mask → Gloves → Gown → Eyewear

Answer

Gloves → Gown → Mask → Eyewear

Answer

Eyewear → Gloves → Gown → Mask

Question 3

What is the recommended sterilization method for critical dental instruments?

Accepted Answer

Autoclaving (steam sterilization).

Answer

Wiping with disinfectant wipes.

Answer

Soaking in cold water.

Answer

Air drying overnight.

Question 4

How often should dental unit waterlines be flushed to reduce bacterial contamination?

Accepted Answer

At the beginning of each day and between patients.

Answer

Once a month.

Answer

Only when visibly contaminated.

Answer

Never; waterlines are self-cleaning.

Question 5

What is the first step in managing an accidental needlestick injury?

Accepted Answer

Wash the wound with soap and water.

Answer

Report to a supervisor after finishing the procedure.

Answer

Apply a bandage without cleaning.

Answer

Ignore it if no blood is visible.

Question 6

Which of the following surfaces must be disinfected after each patient?

Accepted Answer

The dental chair, light handles, and instrument trays.

Answer

The ceiling tiles.

Answer

The assistant's shoes.

Answer

The patient's personal belongings.

Question 7

What is the purpose of a sharps container in a dental office?

Accepted Answer

To dispose of used needles and scalpel blades safely.

Answer

To store extra instruments.

Answer

To hold dental materials.

Answer

To collect patient paperwork.

Question 8

Which organization sets the guidelines for infection control in dentistry?

Accepted Answer

CDC (Centers for Disease Control and Prevention).

Answer

FDA (Food and Drug Administration).

Answer

ADA (American Dental Association).

Answer

OSHA (Occupational Safety and Health Administration).

Question 9

What is the minimum recommended alcohol concentration for hand sanitizers in a dental setting?

Accepted Answer

70%.

Answer

40%.

Answer

60%.

Answer

90%.