NSG 552 WILKES
PSYCHOPHARMACOLOGY EXAMS 1-3
COMPREHENSIVE QUESTIONS AND
ANSWERS
1. Which phase of pharmacokinetics involves the movement of a drug from the site of
administration into the bloodstream?
A. Distribution
B. Absorption
C. Metabolism
D. Excretion
Answer: B
Conceptual Explanation: Absorption is the process by which a drug enters the systemic
circulation from its site of administration.
2. A drug that binds to a receptor and produces the maximum biological response is referred
to as a:
A. Partial agonist
B. Inverse agonist
,C. Antagonist
D. Full agonist
Answer: D
Conceptual Explanation: Full agonists bind to receptors and turn on a biological response
to the maximum extent possible.
3. How many half-lives are generally required for a drug to reach steady-state plasma
concentration?
A. 1 to 2
B. 8 to 10
C. 4 to 5
D. 12 to 15
Answer: C
Conceptual Explanation: Steady state is achieved when the rate of drug administration
equals the rate of drug elimination, which typically takes 4 to 5 half-lives.
4. The primary neurotransmitter associated with the reward system and executive function in
the prefrontal cortex is:
A. Serotonin
B. Dopamine
C. GABA
, D. Acetylcholine
Answer: B
Conceptual Explanation: Dopamine is the key neurotransmitter involved in reward,
motivation, and executive functions.
5. Which Cytochrome P450 enzyme is responsible for metabolizing approximately 25% of all
psychotropic medications, despite representing only a small fraction of total liver enzymes?
A. 2D6
B. 1A2
C. 3A4
D. 2C19
Answer: A
Conceptual Explanation: CYP2D6 is highly significant in psychiatry as it metabolizes
many antidepressants and antipsychotics.
6. Which dopamine pathway is primarily responsible for the positive symptoms of
schizophrenia, such as hallucinations?
A. Mesolimbic
B. Nigrostriatal
C. Tuberoinfundibular
D. Mesocortical
PSYCHOPHARMACOLOGY EXAMS 1-3
COMPREHENSIVE QUESTIONS AND
ANSWERS
1. Which phase of pharmacokinetics involves the movement of a drug from the site of
administration into the bloodstream?
A. Distribution
B. Absorption
C. Metabolism
D. Excretion
Answer: B
Conceptual Explanation: Absorption is the process by which a drug enters the systemic
circulation from its site of administration.
2. A drug that binds to a receptor and produces the maximum biological response is referred
to as a:
A. Partial agonist
B. Inverse agonist
,C. Antagonist
D. Full agonist
Answer: D
Conceptual Explanation: Full agonists bind to receptors and turn on a biological response
to the maximum extent possible.
3. How many half-lives are generally required for a drug to reach steady-state plasma
concentration?
A. 1 to 2
B. 8 to 10
C. 4 to 5
D. 12 to 15
Answer: C
Conceptual Explanation: Steady state is achieved when the rate of drug administration
equals the rate of drug elimination, which typically takes 4 to 5 half-lives.
4. The primary neurotransmitter associated with the reward system and executive function in
the prefrontal cortex is:
A. Serotonin
B. Dopamine
C. GABA
, D. Acetylcholine
Answer: B
Conceptual Explanation: Dopamine is the key neurotransmitter involved in reward,
motivation, and executive functions.
5. Which Cytochrome P450 enzyme is responsible for metabolizing approximately 25% of all
psychotropic medications, despite representing only a small fraction of total liver enzymes?
A. 2D6
B. 1A2
C. 3A4
D. 2C19
Answer: A
Conceptual Explanation: CYP2D6 is highly significant in psychiatry as it metabolizes
many antidepressants and antipsychotics.
6. Which dopamine pathway is primarily responsible for the positive symptoms of
schizophrenia, such as hallucinations?
A. Mesolimbic
B. Nigrostriatal
C. Tuberoinfundibular
D. Mesocortical
