HESI Dental Hygiene - Scientific Bases (Version 2) UPDATED ACTUAL Questions and CORRECT Answers

HESI Dental Hygiene - Scientific Bases
(Version 2) UPDATED ACTUAL Questions
and CORRECT Answers
Which is NOT visible on the floor of the mouth?

A. whartons duct

B. sublingual caruncle

C. stensens duct

D. lingual frenum - CORRECT ANSWER -C. stensens duct



Which molecules make up the disaccharide maltose?

A. glucose and galactose

B. glucose and fructose

C. fructose and galactose

D. two glucose molecules - CORRECT ANSWER -D. two glucose molecules



Which alternative sweetener is nutritive?

A. xylitol

B. saccharin

C. sucralose

D. acesulfame-K - CORRECT ANSWER -A. xylitol



Which fatty acids decrease serum cholesterol levels?

A. monounsaturated

B. polyunsaturated

C. saturated

D. triglycerides - CORRECT ANSWER -B. polyunsaturated

, Which fat-soluble vitamin prevents night blindness?

A. D

B. K

C. E

D. A - CORRECT ANSWER -D. A



Which water-soluble vitamin prevents spina bifida?

A. folate

B. niacin

C. thiamin

D. ascorbic acid - CORRECT ANSWER -A. folate



As used in the dental setting, which stage of anesthesia is nitrous oxide?

A. IV

B. III

C. II

D. I - CORRECT ANSWER -D. I



Which is the drug of choice for acute angina?

A. nitroglycerin

B. carbizem

C. nifedipine

D. digoxin - CORRECT ANSWER -A. nitroglycerin



Tuberculosis is a viral infection. Tuberculosis is acquired through airborne transmission.

A. the first statement is true and the second is false

B. both statements are true

C. both statements are false