NR 546 MIDTERM
Psychopharmacology for the Psychiatric-Mental Health Nurse
Practitioner
Original Premium Exam Review • Expanded Study Edition
This is an original educational resource built from the publicly visible topic coverage of the referenced Stuvia listing. The commercial
document is listed as 84 pages and contains questions/answers; its visible preview includes CYP1A2/smoking, olanzapine, anxiety,
neurotransmitters, and psychotropic metabolism. This guide does not reproduce the paid document or hidden answer key.
■cite■turn2view0■
Important correction: cigarette smoke—not nicotine itself—is the clinically relevant inducer of CYP1A2. This matters when comparing
continued smoking with nicotine replacement. Current clozapine guidance also reflects the FDA's 2025 removal of the federal REMS
reporting requirement while continuing to recommend ANC monitoring. ■cite■turn1search1■turn1search36■
Study strategy: answer before reading the rationale, memorize mechanisms rather than isolated facts, and use the case questions
to practice medication selection and adverse-effect recognition.
NR 546 Psychopharmacology — Original Premium Midterm Review Page 1
, 1. Neurotransmitters & Brain Pathways
1. Which neurotransmitter is the principal fast excitatory transmitter in the CNS?
Answer: Glutamate
Rationale: Glutamate is the major excitatory neurotransmitter and acts through ionotropic receptors such as NMDA and AMPA and
metabotropic receptors.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
2. Which neurotransmitter is the major inhibitory neurotransmitter in the mature CNS?
Answer: GABA
Rationale: Gamma-aminobutyric acid reduces neuronal excitability; enhancing GABA-A signaling is the basis for several
sedative/anxiolytic drugs.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
3. Which neurotransmitter is strongly associated with reward, motivation, movement, and psychosis pathways?
Answer: Dopamine
Rationale: Dopamine signaling participates in mesolimbic reward, mesocortical function, nigrostriatal movement, and
tuberoinfundibular prolactin regulation.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
4. Which dopamine pathway is most associated with positive psychotic symptoms?
Answer: Mesolimbic pathway
Rationale: Excess dopamine signaling in the mesolimbic pathway is classically linked to positive symptoms such as hallucinations and
delusions.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
5. Which dopamine pathway is associated with negative and cognitive symptoms of schizophrenia?
Answer: Mesocortical pathway
Rationale: Reduced dopaminergic signaling in mesocortical/prefrontal circuits is associated with negative and cognitive symptoms.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
6. Which pathway explains antipsychotic-induced hyperprolactinemia?
Answer: Tuberoinfundibular pathway
Rationale: Dopamine normally inhibits prolactin release; D2 blockade can remove this inhibition.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
7. Which pathway is most relevant to antipsychotic-induced parkinsonism and other extrapyramidal symptoms?
Answer: Nigrostriatal pathway
Rationale: D2 blockade in motor circuits can produce rigidity, bradykinesia, tremor, akathisia, and dystonia.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
8. Which neurotransmitter is central to the fight-or-flight response?
Answer: Norepinephrine
Rationale: Norepinephrine increases arousal and supports sympathetic responses to stress; excessive activation can contribute to
anxiety symptoms.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
9. Which neurotransmitter is closely involved in mood, sleep, appetite, pain, and sexual function?
Answer: Serotonin
Rationale: Serotonergic pathways influence multiple behavioral and physiologic functions, which helps explain the broad effects and
adverse effects of serotonergic medications.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
10. What is acetylcholine's major role at the neuromuscular junction?
Answer: Initiation of skeletal-muscle contraction
Rationale: Acetylcholine activates nicotinic receptors on skeletal muscle at the neuromuscular junction.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
11. Which receptor families are associated with acetylcholine?
NR 546 Psychopharmacology — Original Premium Midterm Review Page 2
, Answer: Nicotinic and muscarinic
Rationale: Nicotinic receptors are ligand-gated ion channels; muscarinic receptors are G-protein-coupled receptors.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
12. Which neurotransmitter system is strongly involved in alertness and wakefulness?
Answer: Histamine
Rationale: Central histaminergic signaling supports wakefulness; H1 antagonism commonly produces sedation.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
13. Which endogenous signaling molecule is strongly tied to circadian sleep-wake regulation?
Answer: Melatonin
Rationale: Melatonin signaling at MT1/MT2 receptors helps synchronize circadian sleep timing.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
NR 546 Psychopharmacology — Original Premium Midterm Review Page 3
Psychopharmacology for the Psychiatric-Mental Health Nurse
Practitioner
Original Premium Exam Review • Expanded Study Edition
This is an original educational resource built from the publicly visible topic coverage of the referenced Stuvia listing. The commercial
document is listed as 84 pages and contains questions/answers; its visible preview includes CYP1A2/smoking, olanzapine, anxiety,
neurotransmitters, and psychotropic metabolism. This guide does not reproduce the paid document or hidden answer key.
■cite■turn2view0■
Important correction: cigarette smoke—not nicotine itself—is the clinically relevant inducer of CYP1A2. This matters when comparing
continued smoking with nicotine replacement. Current clozapine guidance also reflects the FDA's 2025 removal of the federal REMS
reporting requirement while continuing to recommend ANC monitoring. ■cite■turn1search1■turn1search36■
Study strategy: answer before reading the rationale, memorize mechanisms rather than isolated facts, and use the case questions
to practice medication selection and adverse-effect recognition.
NR 546 Psychopharmacology — Original Premium Midterm Review Page 1
, 1. Neurotransmitters & Brain Pathways
1. Which neurotransmitter is the principal fast excitatory transmitter in the CNS?
Answer: Glutamate
Rationale: Glutamate is the major excitatory neurotransmitter and acts through ionotropic receptors such as NMDA and AMPA and
metabotropic receptors.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
2. Which neurotransmitter is the major inhibitory neurotransmitter in the mature CNS?
Answer: GABA
Rationale: Gamma-aminobutyric acid reduces neuronal excitability; enhancing GABA-A signaling is the basis for several
sedative/anxiolytic drugs.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
3. Which neurotransmitter is strongly associated with reward, motivation, movement, and psychosis pathways?
Answer: Dopamine
Rationale: Dopamine signaling participates in mesolimbic reward, mesocortical function, nigrostriatal movement, and
tuberoinfundibular prolactin regulation.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
4. Which dopamine pathway is most associated with positive psychotic symptoms?
Answer: Mesolimbic pathway
Rationale: Excess dopamine signaling in the mesolimbic pathway is classically linked to positive symptoms such as hallucinations and
delusions.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
5. Which dopamine pathway is associated with negative and cognitive symptoms of schizophrenia?
Answer: Mesocortical pathway
Rationale: Reduced dopaminergic signaling in mesocortical/prefrontal circuits is associated with negative and cognitive symptoms.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
6. Which pathway explains antipsychotic-induced hyperprolactinemia?
Answer: Tuberoinfundibular pathway
Rationale: Dopamine normally inhibits prolactin release; D2 blockade can remove this inhibition.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
7. Which pathway is most relevant to antipsychotic-induced parkinsonism and other extrapyramidal symptoms?
Answer: Nigrostriatal pathway
Rationale: D2 blockade in motor circuits can produce rigidity, bradykinesia, tremor, akathisia, and dystonia.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
8. Which neurotransmitter is central to the fight-or-flight response?
Answer: Norepinephrine
Rationale: Norepinephrine increases arousal and supports sympathetic responses to stress; excessive activation can contribute to
anxiety symptoms.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
9. Which neurotransmitter is closely involved in mood, sleep, appetite, pain, and sexual function?
Answer: Serotonin
Rationale: Serotonergic pathways influence multiple behavioral and physiologic functions, which helps explain the broad effects and
adverse effects of serotonergic medications.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
10. What is acetylcholine's major role at the neuromuscular junction?
Answer: Initiation of skeletal-muscle contraction
Rationale: Acetylcholine activates nicotinic receptors on skeletal muscle at the neuromuscular junction.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
11. Which receptor families are associated with acetylcholine?
NR 546 Psychopharmacology — Original Premium Midterm Review Page 2
, Answer: Nicotinic and muscarinic
Rationale: Nicotinic receptors are ligand-gated ion channels; muscarinic receptors are G-protein-coupled receptors.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
12. Which neurotransmitter system is strongly involved in alertness and wakefulness?
Answer: Histamine
Rationale: Central histaminergic signaling supports wakefulness; H1 antagonism commonly produces sedation.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
13. Which endogenous signaling molecule is strongly tied to circadian sleep-wake regulation?
Answer: Melatonin
Rationale: Melatonin signaling at MT1/MT2 receptors helps synchronize circadian sleep timing.
Exam focus: Identify the mechanism first, then predict the clinical effect or adverse effect.
NR 546 Psychopharmacology — Original Premium Midterm Review Page 3
