DANB DANB Patient Medical History & Infection Risk Assessment 3

Question 1

Which mode of disease transmission is MOST relevant during aerosol-generating dental procedures?

Accepted Answer

Airborne and droplet transmission of respiratory pathogens

Answer

Dental procedures such as drilling and ultrasonic scaling generate aerosols containing droplets that can transmit respiratory pathogens via airborne and droplet routes to nearby personnel.

Question 2

Pre-procedural mouth rinses (e.g., chlorhexidine) are recommended before dental procedures to:

Accepted Answer

Reduce the microbial load in aerosols generated during treatment

Answer

Pre-procedural mouth rinses with antimicrobial agents like chlorhexidine reduce the number of microorganisms in the oral cavity, thereby lowering the microbial content of aerosols generated during dental treatment.

Question 3

What is the significance of the 'incubation period' in dental infection control?

Accepted Answer

It is the period between infection and symptoms during which a person may unknowingly transmit disease

Answer

During the incubation period, an infected person has no symptoms but may already be infectious, which is why standard precautions — not symptom-based precautions — are used for all patients.

Question 4

When a dental office sees a patient with confirmed active tuberculosis (TB), what additional precaution category applies?

Accepted Answer

Airborne precautions (N95 respirator, negative pressure room if available)

Answer

Active pulmonary TB requires airborne precautions including N95 respirators and ideally a negative-pressure room, as Mycobacterium tuberculosis is transmitted by small airborne particles (droplet nuclei).

Question 5

What is the role of the OSHA Bloodborne Pathogens Standard in a dental office?

Accepted Answer

It mandates employer practices to minimize employee risk of exposure to blood and OPIM

Answer

OSHA's Bloodborne Pathogens Standard requires dental employers to implement exposure control plans, provide PPE and HBV vaccination, train employees, and maintain exposure records to protect workers from bloodborne pathogen exposure.

DANB Infection Control Exam Practice Test

DANB Infection Control Exam Practice Test

DANB DANB Patient Medical History & Infection Risk Assessment 3