MSN 671 PRACTICE TEST BUNDLE
2026 QUESTIONS AND SOLUTIONS
VERIFIED GRADED A+
◉ What triggers vesicle fusion in neurotransmission? Answer: Calcium
influx through voltage-gated calcium channels.
◉ How is the signal terminated in neurotransmission? Answer: By
reuptake transporters, enzymatic degradation, and diffusion.
◉ What is the function of ligand-gated ion channels? Answer: They
open when a neurotransmitter binds.
◉ What is the role of voltage-sensitive ion channels? Answer: They
open due to membrane depolarization.
◉ What is the function of sodium-charged ion channels? Answer: They
allow sodium influx, leading to depolarization.
◉ What neurotransmitter is associated with focus and energy? Answer:
Norepinephrine.
◉ What role does acetylcholine play in the body? Answer: It is involved
in memory, muscle contraction, and the peripheral nervous system.
, ◉ What is melatonin's role in the body? Answer: It regulates circadian
rhythms and sleep-wake cycles.
◉ What is the effect of low serotonin levels? Answer: It is associated
with depression and impulsivity.
◉ What causes tardive dyskinesia? Answer: Long-term D2 receptor
blockade in the nigrostriatal pathway.
◉ What is galactorrhea? Answer: Breast discharge caused by elevated
prolactin levels due to dopamine blockade.
◉ What monitoring is required for patients on second-generation
antipsychotics? Answer: Blood pressure, weight/BMI, waist
circumference, fasted glucose/HbA1C, and lipid panel.
◉ What are approved treatments for bipolar depression? Answer:
Quetiapine, Lurasidone, Olanzapine, Cariprazine, Lumateperone.
◉ What agents can augment SSRIs/SNRIs in unipolar depression?
Answer: Atypical antipsychotics, lithium, or esketamine.
◉ Which antipsychotics are associated with the greatest weight gain?
Answer: Clozapine and Olanzapine.
2026 QUESTIONS AND SOLUTIONS
VERIFIED GRADED A+
◉ What triggers vesicle fusion in neurotransmission? Answer: Calcium
influx through voltage-gated calcium channels.
◉ How is the signal terminated in neurotransmission? Answer: By
reuptake transporters, enzymatic degradation, and diffusion.
◉ What is the function of ligand-gated ion channels? Answer: They
open when a neurotransmitter binds.
◉ What is the role of voltage-sensitive ion channels? Answer: They
open due to membrane depolarization.
◉ What is the function of sodium-charged ion channels? Answer: They
allow sodium influx, leading to depolarization.
◉ What neurotransmitter is associated with focus and energy? Answer:
Norepinephrine.
◉ What role does acetylcholine play in the body? Answer: It is involved
in memory, muscle contraction, and the peripheral nervous system.
, ◉ What is melatonin's role in the body? Answer: It regulates circadian
rhythms and sleep-wake cycles.
◉ What is the effect of low serotonin levels? Answer: It is associated
with depression and impulsivity.
◉ What causes tardive dyskinesia? Answer: Long-term D2 receptor
blockade in the nigrostriatal pathway.
◉ What is galactorrhea? Answer: Breast discharge caused by elevated
prolactin levels due to dopamine blockade.
◉ What monitoring is required for patients on second-generation
antipsychotics? Answer: Blood pressure, weight/BMI, waist
circumference, fasted glucose/HbA1C, and lipid panel.
◉ What are approved treatments for bipolar depression? Answer:
Quetiapine, Lurasidone, Olanzapine, Cariprazine, Lumateperone.
◉ What agents can augment SSRIs/SNRIs in unipolar depression?
Answer: Atypical antipsychotics, lithium, or esketamine.
◉ Which antipsychotics are associated with the greatest weight gain?
Answer: Clozapine and Olanzapine.
