DANB DANB Hand Hygiene & Surface Disinfection

Question 1

What is the minimum recommended duration for routine handwashing with soap and water in a dental setting?

Accepted Answer

20 seconds

Answer

The CDC recommends scrubbing hands for at least 20 seconds with soap and water to effectively remove pathogens.

Question 2

Which hand hygiene method is preferred when hands are visibly soiled with blood or organic material?

Accepted Answer

Soap and water

Answer

When hands are visibly soiled, soap and water must be used because alcohol-based rubs are not effective against visible contamination.

Question 3

What EPA registration level must a surface disinfectant have to be used on clinical contact surfaces in a dental office?

Accepted Answer

Hospital-grade disinfectant

Answer

Clinical contact surfaces in dental offices require EPA-registered hospital-grade disinfectants to ensure adequate pathogen elimination.

Question 4

How should dental personnel perform hand hygiene after removing gloves?

Accepted Answer

Immediately perform hand hygiene after glove removal

Answer

Hand hygiene must be performed immediately after glove removal because gloves can harbor pathogens and have microscopic perforations.

Question 5

What is the correct sequence for applying and removing personal protective equipment in relation to hand hygiene?

Accepted Answer

Hand hygiene → PPE on → patient care → PPE off → hand hygiene

Answer

The correct sequence is to perform hand hygiene before donning PPE, complete patient care, remove PPE, then perform hand hygiene again.

DANB Infection Control Exam Practice Test