Page 1 of 49
WGU D345 - NURS 6438 Psychopharmacology Comprehensive
EXAM QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST
UPDATE THIS YEAR
WGU D345 / NURS 6438 Psychopharmacology Comprehensive Final study set
10 Key Exam Coverage Areas
1. Foundational neuroscience and psychopharmacology principles
2. Neurotransmitters, receptors, agonists, antagonists, and pharmacodynamics
3. Pharmacokinetics, metabolism, CYP450 interactions, and half-life
4. Antidepressants including SSRIs, SNRIs, TCAs, MAOIs, and atypical agents
5. Antipsychotics, dopamine pathways, EPS, NMS, tardive dyskinesia, and metabolic effects
6. Mood stabilizers including lithium, valproate, carbamazepine, and lamotrigine
7. Anxiety medications, benzodiazepines, buspirone, and sedative-hypnotics
8. ADHD medications, stimulants, atomoxetine, and nonstimulant therapies
9. Special populations, pregnancy, older adults, pediatrics, and substance-use
considerations
10. Adverse effects, toxicity, drug interactions, monitoring, safety, and clinical decision-
making
WGU D345 / NURS 6438 Psychopharmacology — 250 MCQs
1.
Which neurotransmitter is most directly associated with reward, motivation, movement, and
psychotic symptom pathways?
A. Dopamine
B. GABA
C. Acetylcholine
D. Glutamate
, Page 2 of 49
Answer: A
Rationale: Dopamine plays major roles in reward, motivation, motor control, and psychosis-
related pathways. Dopamine dysregulation is particularly important in schizophrenia and
Parkinson disease.
2.
What term describes a medication that binds to a receptor and produces a biological response?
A. Antagonist
B. Agonist
C. Enzyme inhibitor
D. Inverse transporter
Answer: B
Rationale: An agonist binds to a receptor and activates it to produce a biological response.
3.
Which neurotransmitter is the primary inhibitory neurotransmitter targeted indirectly by many
anxiolytic medications?
A. Serotonin
B. Dopamine
C. GABA
D. Norepinephrine
, Page 3 of 49
Answer: C
Rationale: Gamma-aminobutyric acid, or GABA, is the major inhibitory neurotransmitter in the
central nervous system. Benzodiazepines enhance GABA-A receptor activity.
4.
What does pharmacokinetics primarily describe when evaluating the movement of a psychiatric
medication through the body?
A. What the medication does to receptors
B. How symptoms influence treatment
C. What the body does to the medication
D. How patients perceive adverse effects
Answer: C
Rationale: Pharmacokinetics describes absorption, distribution, metabolism, and excretion of
medications.
5.
Which pharmacokinetic process primarily determines how a medication is chemically altered
before elimination?
A. Absorption
B. Distribution
C. Metabolism
D. Binding
, Page 4 of 49
Answer: C
Rationale: Metabolism chemically modifies medications, frequently through hepatic enzyme
systems such as CYP450.
6.
Why can inhibition of a CYP450 enzyme significantly increase the concentration of another
psychiatric medication?
A. It increases renal filtration.
B. It decreases metabolism of the affected medication.
C. It permanently activates the medication.
D. It prevents gastrointestinal absorption.
Answer: B
Rationale: Enzyme inhibition can slow metabolism, resulting in higher plasma concentrations
and potentially increased adverse effects.
7.
Which neurotransmitter is most closely associated with mood regulation, anxiety, appetite, and
sleep?
A. Serotonin
B. Acetylcholine
C. GABA
D. Glutamate
WGU D345 - NURS 6438 Psychopharmacology Comprehensive
EXAM QUESTIONS AND CORRECT VERIFIED SOLUTIONS LATEST
UPDATE THIS YEAR
WGU D345 / NURS 6438 Psychopharmacology Comprehensive Final study set
10 Key Exam Coverage Areas
1. Foundational neuroscience and psychopharmacology principles
2. Neurotransmitters, receptors, agonists, antagonists, and pharmacodynamics
3. Pharmacokinetics, metabolism, CYP450 interactions, and half-life
4. Antidepressants including SSRIs, SNRIs, TCAs, MAOIs, and atypical agents
5. Antipsychotics, dopamine pathways, EPS, NMS, tardive dyskinesia, and metabolic effects
6. Mood stabilizers including lithium, valproate, carbamazepine, and lamotrigine
7. Anxiety medications, benzodiazepines, buspirone, and sedative-hypnotics
8. ADHD medications, stimulants, atomoxetine, and nonstimulant therapies
9. Special populations, pregnancy, older adults, pediatrics, and substance-use
considerations
10. Adverse effects, toxicity, drug interactions, monitoring, safety, and clinical decision-
making
WGU D345 / NURS 6438 Psychopharmacology — 250 MCQs
1.
Which neurotransmitter is most directly associated with reward, motivation, movement, and
psychotic symptom pathways?
A. Dopamine
B. GABA
C. Acetylcholine
D. Glutamate
, Page 2 of 49
Answer: A
Rationale: Dopamine plays major roles in reward, motivation, motor control, and psychosis-
related pathways. Dopamine dysregulation is particularly important in schizophrenia and
Parkinson disease.
2.
What term describes a medication that binds to a receptor and produces a biological response?
A. Antagonist
B. Agonist
C. Enzyme inhibitor
D. Inverse transporter
Answer: B
Rationale: An agonist binds to a receptor and activates it to produce a biological response.
3.
Which neurotransmitter is the primary inhibitory neurotransmitter targeted indirectly by many
anxiolytic medications?
A. Serotonin
B. Dopamine
C. GABA
D. Norepinephrine
, Page 3 of 49
Answer: C
Rationale: Gamma-aminobutyric acid, or GABA, is the major inhibitory neurotransmitter in the
central nervous system. Benzodiazepines enhance GABA-A receptor activity.
4.
What does pharmacokinetics primarily describe when evaluating the movement of a psychiatric
medication through the body?
A. What the medication does to receptors
B. How symptoms influence treatment
C. What the body does to the medication
D. How patients perceive adverse effects
Answer: C
Rationale: Pharmacokinetics describes absorption, distribution, metabolism, and excretion of
medications.
5.
Which pharmacokinetic process primarily determines how a medication is chemically altered
before elimination?
A. Absorption
B. Distribution
C. Metabolism
D. Binding
, Page 4 of 49
Answer: C
Rationale: Metabolism chemically modifies medications, frequently through hepatic enzyme
systems such as CYP450.
6.
Why can inhibition of a CYP450 enzyme significantly increase the concentration of another
psychiatric medication?
A. It increases renal filtration.
B. It decreases metabolism of the affected medication.
C. It permanently activates the medication.
D. It prevents gastrointestinal absorption.
Answer: B
Rationale: Enzyme inhibition can slow metabolism, resulting in higher plasma concentrations
and potentially increased adverse effects.
7.
Which neurotransmitter is most closely associated with mood regulation, anxiety, appetite, and
sleep?
A. Serotonin
B. Acetylcholine
C. GABA
D. Glutamate
