HESI DENTAL HYGIENE STUDY GUIDE 2026 COMPREHENSIVE QUESTIONS AND ANSWERS

HESI DENTAL HYGIENE STUDY GUIDE 2026
COMPREHENSIVE QUESTIONS AND
ANSWERS



◉What is the sequence for donning PPE?
A. Gloves, eyewear, mask, protective clothing
B. Eyewear, mask, gloves, protective clothing
C. Clothing, mask, eyewear, gloves
D. Eyewear, clothing, mask, gloves. Answer: Clothing, mask, eyewear,
gloves


◉T/F: Spatter is >50 um; Aerosols are <50um and invisible.g.
Answer: Both statements are true


◉What is the MOST IMPORTANT behavior in prevention of disease
transmission?
A. Hand hygiene
B. PPE
C. Medication
D. Vaccinations. Answer: Hand hygiene

,◉How long should you wash your hands?. Answer: 20 seconds


◉T/F: You cannot apply alcohol based hand rub after initially
washing hands.. Answer: False; you can apply alcohol after washing
hands


◉Should fingernails be long and clean or short and clean?. Answer:
Short and clean


◉What are agents used to destroy or inhibit the GROWTH OF
MICROORGANISMS?. Answer: Disinfectants


◉Which level of disinfectants destroys bacteria, most fungi, viruses,
and is registered by the EPA as TUBERCULOCIDAL?
A. High
B. Intermediate
C. Low. Answer: Intermediate


◉Which level of disinfectants destroys bacteria, some fungi, viruses,
but IS NOT tuberculocidal?
A. High
B. Intermediate

,C. Low. Answer: Low


◉What level of disinfectants are DETERGENTS?
A. High
B. Intermediate
C. Low. Answer: low


◉What level of disinfectants are GLUTARALDEHYDES?
A. High
B. Intermediate
C. Low. Answer: High


◉What level of disinfectants are chlorine-containing compounds,
iodophors, and phenolics?
A. High
B. Intermediate
C. Low. Answer: Intermediate disinfectants


◉Which level of disinfectants destroys ALL microorganisms, but
may NOT destroy high numbers of BACTERIAL SPORES?
A. High
B. Intermediate

, C. Low. Answer: high


◉T/F: Housekeeping surfaces CANNOT be cleaned with soap and
water?. Answer: False; it can be


◉What surfaces include floors, walls, and sinks and are less likely to
transmit disease?
A. Clinical contact surfaces
B. Housekeeping surfaces. Answer: Housekeeping surfaces


◉Which surfaces can become contaminated from sprays or droplets
or by touching with gloved hands (HAVE POTENTIAL to transmit
disease)?
A. Clinical contact surfaces
B. Housekeeping surfaces. Answer: Clinical contact surfaces


◉T/F: Always change barriers between patients when working with
clinical contact surfaces? They can be cleaned with soap and water..
Answer: First statement is true, second is false; must be CLEANED
AND DISINFECTED


◉What are examples of surface disinfectants?
A. Phenolics
B. Chlorines