NURS 5357 Exam 3 Review| Comprehensive Questions and Answers with Rationales | 2026/2027
Update | 100% Correct - University of Texas, Tyler.
Question 1
A 32-year-old patient experiences heightened fear responses when exposed to situations that
resemble a previous frightening experience. Which brain structure plays a central role in
detecting emotionally salient threats and forming fear-related associations?
A. Cerebellar vermis B. Amygdala C. Primary visual cortex D. Medulla oblongata
Correct Answer: B. Amygdala
Rationale: The amygdala participates in identifying emotionally significant stimuli, threat-related
learning, and coordinating fear responses through connections with cortical, hypothalamic, and
brainstem regions.
Altered amygdala reactivity has been investigated in anxiety disorders. However, anxiety arises
from interactions among multiple neural systems rather than the activity of one isolated structure.
Question 2
A patient with generalized anxiety disorder demonstrates persistent worry and difficulty
regulating emotional reactions. Neuroimaging research suggests altered communication between
the prefrontal cortex and limbic structures.
Which explanation best describes the functional importance of this finding?
A. The prefrontal cortex regulates only voluntary muscle contractions. B. Limbic activity is
unrelated to emotional behavior. C. Anxiety results exclusively from damage to sensory neurons.
D. Prefrontal-limbic networks participate in cognitive appraisal and regulation of emotional
responses.
Correct Answer: D. Prefrontal-limbic networks participate in cognitive appraisal and regulation
of emotional responses.
Rationale: The prefrontal cortex contributes to executive control, evaluation of emotionally
significant information, and regulation of behavioral responses.
Interactions between the prefrontal cortex and structures such as the amygdala help shape
emotional regulation. Altered activity in these circuits may contribute to persistent anxiety,
although neuroimaging findings alone cannot establish a psychiatric diagnosis.
Question 3
,A patient experiences a rapid heartbeat, increased respiratory rate, and sweating during an
episode of intense fear.
Which autonomic nervous system division primarily produces these physiological changes?
A. Sympathetic nervous system B. Enteric nervous system C. Somatic sensory system D.
Parasympathetic nervous system
Correct Answer: A. Sympathetic nervous system
Rationale: Sympathetic activation prepares the body to respond to perceived threats through
changes in cardiovascular, respiratory, and metabolic activity.
These physiological responses are often associated with fear and panic. The autonomic response
is coordinated through interactions involving the hypothalamus, brainstem, and other central
neural circuits.
Question 4
Which neurotransmitter is the principal inhibitory neurotransmitter in the mature central nervous
system and contributes to regulation of neuronal excitability in anxiety-related circuits?
A. Dopamine B. Glutamate C. Gamma-aminobutyric acid (GABA) D. Acetylcholine
Correct Answer: C. Gamma-aminobutyric acid (GABA)
Rationale: GABA is the major inhibitory neurotransmitter in the mature brain.
GABA-A receptors are ligand-gated ion channels that commonly mediate rapid inhibition,
whereas GABA-B receptors produce slower G-protein-mediated effects.
Inhibitory signaling is essential for maintaining balance within neural networks involved in
arousal, stress, and emotional regulation. Anxiety disorders cannot be universally attributed to a
measurable GABA deficiency.
Question 5
A psychiatric researcher studies brainstem neurons that contribute to vigilance, arousal, and
physiological responses to stress. The neurons originate predominantly in the locus coeruleus.
Which neurotransmitter system is primarily associated with this structure?
A. Serotonergic system B. Noradrenergic system C. Histaminergic system D. Cholinergic system
Correct Answer: B. Noradrenergic system
, Rationale: The locus coeruleus is a major source of norepinephrine projections throughout the
brain.
Noradrenergic activity contributes to vigilance, attention, arousal, and stress-related responses.
Altered noradrenergic regulation is relevant to the study of anxiety and panic symptoms.
Question 6
A patient has experienced excessive worry about employment, family responsibilities, finances,
and personal health on most days for eight months. The worry is difficult to control and is
accompanied by restlessness, muscle tension, fatigue, and impaired concentration.
Which diagnosis is most consistent with the information provided?
A. Generalized anxiety disorder B. Brief psychotic disorder C. Bipolar I disorder D. Specific
phobia
Correct Answer: A. Generalized anxiety disorder
Rationale: Generalized anxiety disorder (GAD) involves excessive anxiety and worry about
multiple areas of life, occurring more days than not for at least six months.
The worry must be difficult to control and accompanied by qualifying associated symptoms. In
adults, at least three of the six specified associated symptoms are required, along with clinically
significant distress or impairment.
Appropriate assessment must also consider medical, medication-related, and other psychiatric
explanations.
Question 7
A 26-year-old patient experiences recurrent, unexpected panic attacks. For the following six
weeks, the patient worries persistently about experiencing another attack and begins avoiding
activities because of these concerns.
Which diagnosis should the PMHNP consider?
A. Social anxiety disorder B. Separation anxiety disorder C. Adjustment disorder D. Panic
disorder
Correct Answer: D. Panic disorder
Rationale: Panic disorder involves recurrent unexpected panic attacks followed by at least one
month of persistent concern about additional attacks or their consequences, or significant
maladaptive behavioral changes related to the attacks.
Update | 100% Correct - University of Texas, Tyler.
Question 1
A 32-year-old patient experiences heightened fear responses when exposed to situations that
resemble a previous frightening experience. Which brain structure plays a central role in
detecting emotionally salient threats and forming fear-related associations?
A. Cerebellar vermis B. Amygdala C. Primary visual cortex D. Medulla oblongata
Correct Answer: B. Amygdala
Rationale: The amygdala participates in identifying emotionally significant stimuli, threat-related
learning, and coordinating fear responses through connections with cortical, hypothalamic, and
brainstem regions.
Altered amygdala reactivity has been investigated in anxiety disorders. However, anxiety arises
from interactions among multiple neural systems rather than the activity of one isolated structure.
Question 2
A patient with generalized anxiety disorder demonstrates persistent worry and difficulty
regulating emotional reactions. Neuroimaging research suggests altered communication between
the prefrontal cortex and limbic structures.
Which explanation best describes the functional importance of this finding?
A. The prefrontal cortex regulates only voluntary muscle contractions. B. Limbic activity is
unrelated to emotional behavior. C. Anxiety results exclusively from damage to sensory neurons.
D. Prefrontal-limbic networks participate in cognitive appraisal and regulation of emotional
responses.
Correct Answer: D. Prefrontal-limbic networks participate in cognitive appraisal and regulation
of emotional responses.
Rationale: The prefrontal cortex contributes to executive control, evaluation of emotionally
significant information, and regulation of behavioral responses.
Interactions between the prefrontal cortex and structures such as the amygdala help shape
emotional regulation. Altered activity in these circuits may contribute to persistent anxiety,
although neuroimaging findings alone cannot establish a psychiatric diagnosis.
Question 3
,A patient experiences a rapid heartbeat, increased respiratory rate, and sweating during an
episode of intense fear.
Which autonomic nervous system division primarily produces these physiological changes?
A. Sympathetic nervous system B. Enteric nervous system C. Somatic sensory system D.
Parasympathetic nervous system
Correct Answer: A. Sympathetic nervous system
Rationale: Sympathetic activation prepares the body to respond to perceived threats through
changes in cardiovascular, respiratory, and metabolic activity.
These physiological responses are often associated with fear and panic. The autonomic response
is coordinated through interactions involving the hypothalamus, brainstem, and other central
neural circuits.
Question 4
Which neurotransmitter is the principal inhibitory neurotransmitter in the mature central nervous
system and contributes to regulation of neuronal excitability in anxiety-related circuits?
A. Dopamine B. Glutamate C. Gamma-aminobutyric acid (GABA) D. Acetylcholine
Correct Answer: C. Gamma-aminobutyric acid (GABA)
Rationale: GABA is the major inhibitory neurotransmitter in the mature brain.
GABA-A receptors are ligand-gated ion channels that commonly mediate rapid inhibition,
whereas GABA-B receptors produce slower G-protein-mediated effects.
Inhibitory signaling is essential for maintaining balance within neural networks involved in
arousal, stress, and emotional regulation. Anxiety disorders cannot be universally attributed to a
measurable GABA deficiency.
Question 5
A psychiatric researcher studies brainstem neurons that contribute to vigilance, arousal, and
physiological responses to stress. The neurons originate predominantly in the locus coeruleus.
Which neurotransmitter system is primarily associated with this structure?
A. Serotonergic system B. Noradrenergic system C. Histaminergic system D. Cholinergic system
Correct Answer: B. Noradrenergic system
, Rationale: The locus coeruleus is a major source of norepinephrine projections throughout the
brain.
Noradrenergic activity contributes to vigilance, attention, arousal, and stress-related responses.
Altered noradrenergic regulation is relevant to the study of anxiety and panic symptoms.
Question 6
A patient has experienced excessive worry about employment, family responsibilities, finances,
and personal health on most days for eight months. The worry is difficult to control and is
accompanied by restlessness, muscle tension, fatigue, and impaired concentration.
Which diagnosis is most consistent with the information provided?
A. Generalized anxiety disorder B. Brief psychotic disorder C. Bipolar I disorder D. Specific
phobia
Correct Answer: A. Generalized anxiety disorder
Rationale: Generalized anxiety disorder (GAD) involves excessive anxiety and worry about
multiple areas of life, occurring more days than not for at least six months.
The worry must be difficult to control and accompanied by qualifying associated symptoms. In
adults, at least three of the six specified associated symptoms are required, along with clinically
significant distress or impairment.
Appropriate assessment must also consider medical, medication-related, and other psychiatric
explanations.
Question 7
A 26-year-old patient experiences recurrent, unexpected panic attacks. For the following six
weeks, the patient worries persistently about experiencing another attack and begins avoiding
activities because of these concerns.
Which diagnosis should the PMHNP consider?
A. Social anxiety disorder B. Separation anxiety disorder C. Adjustment disorder D. Panic
disorder
Correct Answer: D. Panic disorder
Rationale: Panic disorder involves recurrent unexpected panic attacks followed by at least one
month of persistent concern about additional attacks or their consequences, or significant
maladaptive behavioral changes related to the attacks.
