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Test Bank (Complete Download) For Applied Pharmacology for the Dental Hygienist 8th Edition by Haveles ISBN: 9780323171113 Instantly Downloadable Test Bank

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Test Bank (Complete Download) For Applied Pharmacology for the Dental Hygienist 8th Edition by Haveles ISBN: 9780323171113 Instantly Downloadable Test Bank

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Test Bank (Complete Download) For Applied Pharmacology for the Dental Hygienist 8th Edition by Haveles ISBN: 9780323171113 Instantly Downloadable Test Bank

MULTIPLE CHOICE
1. A drug is defined as a biologically active substance that can modify
a. the environment.
b. the pH of tissue.
c. cellular function.
d. immune response.
ANS: C
A drug can modify cellular function. A general understanding of drug action allows the dental
hygienist to make informed decisions regarding possible drug interactions or adverse reactions
for the patient. It is a concern that discarded drugs may be affecting the environment, but this
is not the definition of a drug. Some drugs may have the capacity to modify body
compartment pH; however, this is not the definition for a drug. Some drugs may have the
capacity to modify the immune response, but this is not the definition of a drug.
DIF: Recall REF: Introduction | p. 11 OBJ: 1
TOP: NBDHE, 6.0. Pharmacology
2. In comparing two drugs, the dose-response curve for the drug that is more efficacious would
a. be closer to the y-axis.
b. be farther from the y-axis.
c. have a greater curve height.
d. have a higher median effective dose (ED50).
ANS: C
Efficacy is an expression of maximum intensity of effect or response that can be produced by
a drug. The other choices refer to indicators of drug potency, not efficacy. The potency of a
drug is a function of the amount of drug required to produce an effect. The potency of drug is
shown by the location of that drug’s curve along the log-dose axis (x-axis).
DIF: Comprehension REF: Characterization of Drug Action (Efficacy) | p. 11
OBJ: 1 TOP: NBDHE, 6.0. Pharmacology
3. Administering a drug of greater potency is better because drugs of greater potency do not
require as high a dose.
a. Both parts of the statement are true.
b. Both parts of the statement are false.
c. The first part of the statement is true; the second part is false.
d. The first part of the statement is false; the second part is true.
ANS: D

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