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

10 seconds

Answer

15 seconds

Answer

30 seconds

Question 2

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

Accepted Answer

Soap and water

Answer

Alcohol-based hand rub

Answer

Antimicrobial hand gel

Answer

Surgical hand scrub

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

Household-grade disinfectant

Answer

Industrial-grade disinfectant

Answer

Food-safe disinfectant

Question 4

How should dental personnel perform hand hygiene after removing gloves?

Accepted Answer

Immediately perform hand hygiene after glove removal

Answer

Only if gloves were torn

Answer

Hand hygiene is not needed after glove removal

Answer

Only if touching a patient

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

PPE on → patient care → PPE off → hand hygiene

Answer

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

Answer

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

Question 6

Which surfaces are classified as 'clinical contact surfaces' requiring disinfection between patients?

Accepted Answer

Light handles, bracket trays, and chair controls

Answer

Waiting room chairs only

Answer

Walls and ceilings near the dental chair

Answer

Reception desk and door handles