ACTUAL Exam Questions and CORRECT
Answers
Which one of the following is not a major feature of an ideal drug?
a. demonstrated effectiveness
b. covalent interaction with receptor
c. receptor selectivity
d. no adverse effects - CORRECT ANSWER - ANS: B
Variability of drug response in an individual patient may be introduced by which of the
following:
1. genetic differences in drug metabolism
2. covalent interaction with receptor
3. poor compliance and missed doses
4. inadequate record keeping
a. 1 and 2
b. 1 and 3
c. 1,3,4
d. all of the above - CORRECT ANSWER - ANS: B
Large multi-site clinical trials, usually with thousands of subjects, are conducted in which phase
of drug evaluation prior to FDA approval?
a. Preclinical drug screening
,b. Phase 1
c. Phase 2
d. Phase 3 - CORRECT ANSWER - ANS: D
Which one of the following is the ultimate factor that determines the intensity of drug response?
1. cellular location of the receptor [intra vs. extracellular]
2. drug concentration at receptor site
3. proportion of nonionized activity to ionized activity
4. prescribed dose
a. 1 only
b. 2 only
c. 1,2,4
d. all of the above - CORRECT ANSWER - ANS: B
Which of the following pharmacokinetics term describes how drugs move from the site of
administration to the circulation?
a. Absorption
b. Distribution
c. Metabolism
d. Excretion - CORRECT ANSWER - ANS: A
Which of the following is true regarding a drug that binds extensively to plasma proteins?
a. will likely have a large volume of distribution [Vd]
b. will be readily eliminated by the kidney
, c. is unlikely to affect the bioavailability of other drugs
d. only unbound drug is available for distribution - CORRECT ANSWER - ANS: D
Acidification of the urine by high doses of Vitamin C [ascorbic acid] may result in:
a. better elimination of meperidine [Demerol], a basic drug, due to ion trapping
b. better elimination of aspirin, an acidic drug, due to ion trapping
c. altered concentration gradient and faster absorption of meperidine [Demerol], a basic drug
d. altered concentration gradient and faster absorption of aspirin, an acidic drug - CORRECT
ANSWER - ANS: A
Which of the following does NOT influence the degree to which a drug moves by passive
diffusion?
a. the concentration gradient between the two compartments
b. the lipophilicity of a drug
c. the proportion of drug that is charged
d. the degree of gastric absorption - CORRECT ANSWER - ANS: D
A depot injection preparation can be given by which of the following routes?
a. IV
b. IM
c. subcutaneous
d. b and c - CORRECT ANSWER - ANS: D
Based on the degree of distribution, which one of the following drugs will reach the highest
concentration in the plasma?