NR565 ADVANCED PHARMACOLOGY
FUNDAMENTALS MIDTERM EXAM
REVIEW QUESTIONS AND VERIFIED
ANSWERS |GRADE A+|CHAMBERLAIN
COLLEGE
1. Which pharmacokinetic process is most significantly affected by a drug’s high affinity for
plasma albumin?
A. Absorption
B. Excretion
C. Metabolism
D. Distribution
Answer: D
Conceptual Explanation: Distribution is the movement of drugs throughout the body.
Drugs that are highly protein-bound remain in the intravascular space and cannot easily
cross membranes to reach their target tissues, thus affecting distribution.
,2. A patient is prescribed a drug that is a known substrate of the CYP3A4 enzyme. If they
concurrently take a drug that is a potent CYP3A4 inhibitor, what is the most likely outcome?
A. Decreased plasma concentration of the substrate drug
B. Rapid excretion of the substrate drug
C. Increased plasma concentration of the substrate drug
D. No change in drug efficacy
Answer: C
Conceptual Explanation: CYP inhibitors slow down the metabolism of substrate drugs,
leading to increased plasma concentrations and a higher risk of toxicity.
3. Which of the following describes the ‘First-Pass Effect’?
A. The initial distribution of a drug to the brain
B. The metabolic inactivation of an oral drug by the liver before it reaches systemic
circulation
C. The rapid renal excretion of a drug after the first dose
D. The binding of a drug to its receptor for the first time
Answer: B
Conceptual Explanation: The first-pass effect occurs when an orally administered drug is
absorbed from the GI tract into the portal circulation and metabolized by the liver before
reaching the systemic bloodstream, significantly reducing bioavailability.
, 4. For a drug with a half-life of 10 hours, approximately how long will it take to reach steady-
state plasma concentration with repeated dosing?
A. 40 to 50 hours
B. 20 to 30 hours
C. 10 hours
D. 100 hours
Answer: A
Conceptual Explanation: Steady state is generally reached after 4 to 5 half-lives. 10 hours
multiplied by 4 or 5 equals 40 to 50 hours.
5. Which schedule of controlled substances has the highest potential for abuse while still
maintaining an accepted medical use in the United States?
A. Schedule I
B. Schedule III
C. Schedule II
D. Schedule IV
Answer: C
Conceptual Explanation: Schedule II drugs have a high potential for abuse and may lead
to severe psychological or physical dependence, but they have accepted medical uses.
Schedule I drugs have no accepted medical use.
FUNDAMENTALS MIDTERM EXAM
REVIEW QUESTIONS AND VERIFIED
ANSWERS |GRADE A+|CHAMBERLAIN
COLLEGE
1. Which pharmacokinetic process is most significantly affected by a drug’s high affinity for
plasma albumin?
A. Absorption
B. Excretion
C. Metabolism
D. Distribution
Answer: D
Conceptual Explanation: Distribution is the movement of drugs throughout the body.
Drugs that are highly protein-bound remain in the intravascular space and cannot easily
cross membranes to reach their target tissues, thus affecting distribution.
,2. A patient is prescribed a drug that is a known substrate of the CYP3A4 enzyme. If they
concurrently take a drug that is a potent CYP3A4 inhibitor, what is the most likely outcome?
A. Decreased plasma concentration of the substrate drug
B. Rapid excretion of the substrate drug
C. Increased plasma concentration of the substrate drug
D. No change in drug efficacy
Answer: C
Conceptual Explanation: CYP inhibitors slow down the metabolism of substrate drugs,
leading to increased plasma concentrations and a higher risk of toxicity.
3. Which of the following describes the ‘First-Pass Effect’?
A. The initial distribution of a drug to the brain
B. The metabolic inactivation of an oral drug by the liver before it reaches systemic
circulation
C. The rapid renal excretion of a drug after the first dose
D. The binding of a drug to its receptor for the first time
Answer: B
Conceptual Explanation: The first-pass effect occurs when an orally administered drug is
absorbed from the GI tract into the portal circulation and metabolized by the liver before
reaching the systemic bloodstream, significantly reducing bioavailability.
, 4. For a drug with a half-life of 10 hours, approximately how long will it take to reach steady-
state plasma concentration with repeated dosing?
A. 40 to 50 hours
B. 20 to 30 hours
C. 10 hours
D. 100 hours
Answer: A
Conceptual Explanation: Steady state is generally reached after 4 to 5 half-lives. 10 hours
multiplied by 4 or 5 equals 40 to 50 hours.
5. Which schedule of controlled substances has the highest potential for abuse while still
maintaining an accepted medical use in the United States?
A. Schedule I
B. Schedule III
C. Schedule II
D. Schedule IV
Answer: C
Conceptual Explanation: Schedule II drugs have a high potential for abuse and may lead
to severe psychological or physical dependence, but they have accepted medical uses.
Schedule I drugs have no accepted medical use.
