DANB ICE Disease Transmission & Safety Protocols 3

Question 1

What must be included in a dental office's written Exposure Control Plan per OSHA?

Accepted Answer

Exposure determination, schedule/methods for standard precautions, and post-exposure evaluation procedures

Answer

The ECP must include exposure determination, methods of compliance, HBV vaccination program, post-exposure procedures, hazard communication, and annual review.

Question 2

What is the difference between antisepsis and disinfection?

Accepted Answer

Antisepsis is for living tissue; disinfection is for inanimate objects

Answer

Antisepsis applies antimicrobial agents to living tissue; disinfection eliminates pathogens on inanimate objects and surfaces.

Question 3

Which hepatitis virus poses the greatest occupational risk to dental workers based on needlestick transmissibility?

Accepted Answer

Hepatitis B (HBV)

Answer

HBV has the highest transmission risk at 6-30% per needlestick from an HBeAg-positive source, compared to 1.8% for HCV and 0.3% for HIV.

Question 4

What are spatter and aerosols in dental procedures, and how do they differ?

Accepted Answer

Spatter is larger droplets (>50 μm) settling quickly; aerosols are smaller particles (<50 μm) remaining airborne for extended periods

Answer

The critical difference is particle size: spatter settles quickly as a contact hazard, while aerosols remain suspended and can be inhaled deep into the respiratory tract.

Question 5

How can dental treatment water serve as a vehicle for disease transmission?

Accepted Answer

Contaminated waterlines can transmit opportunistic pathogens through oral contact and via aerosols

Answer

Biofilm-contaminated waterline water contacts open wounds and becomes aerosolized, serving as a vehicle for transmission to patients and dental personnel.

DANB Infection Control Exam Practice Test

DANB Infection Control Exam Practice Test

DANB ICE Disease Transmission & Safety Protocols 3