ADAP Infection Control 5

Question 1

Which of the following best describes the 'chain of infection' concept relevant to dental infection control?

Accepted Answer

The sequence of elements required for an infectious disease to spread from a source to a susceptible host

Answer

The chain of infection describes the sequential links—infectious agent, reservoir, portal of exit, transmission route, portal of entry, and susceptible host—that must all be present for infection to occur.

Question 2

What is the recommended contact time for most intermediate-level surface disinfectants to be effective?

Accepted Answer

The time specified on the product label (usually 1–10 minutes)

Answer

Disinfectants must remain visibly wet on surfaces for the full contact time stated on the EPA-registered product label to achieve the claimed efficacy.

Question 3

Which of the following is an example of engineering controls used to reduce needlestick injuries in dentistry?

Accepted Answer

Using safety syringes with resheathing mechanisms

Answer

Engineering controls are physical or mechanical devices—such as safety syringes with passive resheathing—that isolate or remove the hazard from the workplace.

Question 4

A dental office uses dry heat sterilization. What temperature and time combination is typically required for unwrapped instruments?

Accepted Answer

160°C for 1 hour

Answer

Dry heat sterilization requires higher temperatures than steam autoclave; the standard cycle is 160°C (320°F) for 1 hour or 170°C for 30 minutes for unwrapped instruments.

Question 5

Which regulatory agency sets enforceable workplace safety standards for dental infection control in the United States?

Accepted Answer

Occupational Safety and Health Administration (OSHA)

Answer

OSHA enforces legally binding workplace safety regulations, including the Bloodborne Pathogens Standard (29 CFR 1910.1030), while CDC issues guidelines that are advisory.

(ADAP) Alternative Dental Assisting Program Practice Test

(ADAP) Alternative Dental Assisting Program Practice Test

ADAP Infection Control 5