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NR 546 Midterm Exam Psychopharmacology PMHNP
2026/2027 Test Bank with Verified Answers and Detailed
Rationales NGN Grade A+
1. Neuroscience is the foundation for mental health prescribing, especially as the
future moves toward:
A. Diagnosis-based drug selection
B. Symptom-based prescribing
C. Trial-and-error prescribing
D. Genetic testing only
Correct Answer: Symptom-based prescribing
Rationale: The future of mental health prescribing is moving toward symptom-based
prescribing rather than selecting a drug class based solely on diagnosis.
2. Functional neuroanatomy is best defined as:
A. The study of brain structure only
B. Classifying how regions within the nervous system relate to psychology and behavior
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C. The study of neurotransmitter function
D. The study of brain injuries
Correct Answer: Classifying how regions within the nervous system relate to
psychology and behavior
Rationale: Functional neuroanatomy links brain regions to psychological and behavioral
functions.
3. Epigenetics is defined as the study of:
A. Genetic mutations
B. Influences on gene expression that occur without a DNA change
C. Hereditary patterns
D. Chromosomal abnormalities
Correct Answer: Influences on gene expression that occur without a DNA change
Rationale: Epigenetics studies how environmental factors influence gene expression
without altering DNA sequence.
4. Why is epigenetics important in mental health?
A. It permanently changes DNA sequences
B. It is involved in switching genes on and off, controlling transcription/translation
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C. It only affects physical health
D. It has no impact on mental health
Correct Answer: It is involved in switching genes on and off, controlling
transcription/translation
Rationale: Epigenetics regulates gene expression by turning genes on or off without
changing DNA.
5. The CYP450 enzyme family is most important in:
A. Neurotransmitter synthesis
B. Metabolizing drugs
C. Receptor binding
D. Signal transduction
Correct Answer: Metabolizing drugs
Rationale: CYP450 enzymes are responsible for metabolizing most medications.
6. Which of the following are CYP450 inducers? (Select All That Apply)
A. Phenytoin
B. Rifampin
NR 546 Midterm Exam Psychopharmacology PMHNP
2026/2027 Test Bank with Verified Answers and Detailed
Rationales NGN Grade A+
1. Neuroscience is the foundation for mental health prescribing, especially as the
future moves toward:
A. Diagnosis-based drug selection
B. Symptom-based prescribing
C. Trial-and-error prescribing
D. Genetic testing only
Correct Answer: Symptom-based prescribing
Rationale: The future of mental health prescribing is moving toward symptom-based
prescribing rather than selecting a drug class based solely on diagnosis.
2. Functional neuroanatomy is best defined as:
A. The study of brain structure only
B. Classifying how regions within the nervous system relate to psychology and behavior
,2|Page
C. The study of neurotransmitter function
D. The study of brain injuries
Correct Answer: Classifying how regions within the nervous system relate to
psychology and behavior
Rationale: Functional neuroanatomy links brain regions to psychological and behavioral
functions.
3. Epigenetics is defined as the study of:
A. Genetic mutations
B. Influences on gene expression that occur without a DNA change
C. Hereditary patterns
D. Chromosomal abnormalities
Correct Answer: Influences on gene expression that occur without a DNA change
Rationale: Epigenetics studies how environmental factors influence gene expression
without altering DNA sequence.
4. Why is epigenetics important in mental health?
A. It permanently changes DNA sequences
B. It is involved in switching genes on and off, controlling transcription/translation
, 3|Page
C. It only affects physical health
D. It has no impact on mental health
Correct Answer: It is involved in switching genes on and off, controlling
transcription/translation
Rationale: Epigenetics regulates gene expression by turning genes on or off without
changing DNA.
5. The CYP450 enzyme family is most important in:
A. Neurotransmitter synthesis
B. Metabolizing drugs
C. Receptor binding
D. Signal transduction
Correct Answer: Metabolizing drugs
Rationale: CYP450 enzymes are responsible for metabolizing most medications.
6. Which of the following are CYP450 inducers? (Select All That Apply)
A. Phenytoin
B. Rifampin
