EXAM QUIZ BANK 2026-2027 |
Complete Guide | Questions & Verified
Answers | PMHNP Care Across the
Lifespan I | Pass Guaranteed - A+
Graded
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PART A – MULTIPLE CHOICE (Q1–80)
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Neurobiology & Psychiatric Assessment (Q1–15)
Q1 (Neurobiology – Serotonin pathway): A 28-year-old patient with major depressive disorder
asks about how SSRIs work. The PMHNP explains that serotonin is primarily synthesized in
which brain region and projects widely to modulate mood, sleep, and appetite?
A) Substantia nigra; projects to the striatum
B) Raphe nuclei; projects to the prefrontal cortex, limbic system, and hypothalamus
C) Locus coeruleus; projects to the cerebellum and spinal cord
D) Nucleus accumbens; projects to the ventral tegmental area
[CORRECT] B
Rationale: The raphe nuclei in the brainstem are the primary source of serotonin (5-HT)
synthesis, with extensive projections to the prefrontal cortex, amygdala, hippocampus, and
hypothalamus—regions critical for mood regulation, sleep, and appetite. Distractor A describes
the dopaminergic nigrostriatal pathway. Distractor C describes the noradrenergic system.
Clinical pearl: Understanding serotonergic projections helps explain why SSRIs affect multiple
domains (mood, anxiety, sleep, GI function) beyond depression.
Q2 (Neurobiology – Dopamine pathways): A PMHNP is evaluating a patient with schizophrenia
who presents with positive symptoms and is considering antipsychotic therapy. The therapeutic
target for reducing hallucinations and delusions involves antagonism of dopamine in which
pathway?
A) Mesocortical pathway
B) Tuberoinfundibular pathway
C) Mesolimbic pathway
D) Nigrostriatal pathway
,[CORRECT] C
Rationale: The mesolimbic dopamine pathway (ventral tegmental area to nucleus accumbens,
amygdala, hippocampus) is hyperactive in schizophrenia and mediates positive symptoms
(hallucinations, delusions); antipsychotic D2 antagonism here reduces these symptoms.
Distractor A (mesocortical) is hypoactive and associated with negative/cognitive symptoms.
Distractor D (nigrostriatal) blockade causes extrapyramidal symptoms. Clinical pearl: All
antipsychotics block D2 receptors, but second-generation agents also affect serotonin to
mitigate EPS.
Q3 (Neurobiology – HPA axis): A 45-year-old woman with chronic PTSD has elevated evening
cortisol levels and a blunted ACTH response to CRH stimulation. This neurobiological finding is
most consistent with:
A) Hypothalamic-pituitary-adrenal (HPA) axis hyperactivity with negative feedback suppression
B) HPA axis hypoactivity with enhanced negative feedback
C) Normal HPA axis function with circadian rhythm disruption
D) Primary adrenal insufficiency
[CORRECT] B
Rationale: Chronic PTSD is associated with HPA axis hypoactivity and enhanced negative
feedback (increased glucocorticoid receptor sensitivity), resulting in lower baseline cortisol and
blunted ACTH response—distinct from acute stress hyperactivity. Distractor A describes acute
stress or melancholic depression. Distractor C incorrectly normalizes the finding. Clinical pearl:
HPA axis dysregulation in PTSD has treatment implications; some evidence supports cortisol
administration for prevention.
Q4 (Neurobiology – Glutamate): The PMHNP is reviewing neurobiological mechanisms for a
patient with treatment-resistant depression being considered for ketamine/esketamine therapy.
The rapid antidepressant effect of ketamine is primarily mediated through:
A) Direct NMDA receptor agonism increasing glutamate release
B) NMDA receptor antagonism leading to increased synaptic glutamate and BDNF release
C) GABA-A receptor modulation decreasing neuronal excitability
D) Monoamine oxidase inhibition increasing serotonin and norepinephrine
[CORRECT] B
Rationale: Ketamine is an NMDA receptor antagonist that paradoxically increases synaptic
glutamate availability, activating AMPA receptors and triggering downstream signaling (mTOR,
BDNF) that rapidly enhances synaptic plasticity. Distractor A reverses the mechanism.
Distractor C describes benzodiazepines. Clinical pearl: Esketamine (Spravato) is FDA-approved
for treatment-resistant depression and requires REMS certification for administration.
Q5 (Psychiatric Assessment – MSE): During a mental status examination, the PMHNP notes
that a patient with mania rapidly shifts between unrelated topics, making it difficult to follow the
conversation. This finding is best documented as:
A) Circumstantiality
B) Tangentiality
C) Flight of ideas
D) Loosening of associations
[CORRECT] C
, ationale: Flight of ideas is characterized by rapid, continuous speech with abrupt shifts
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between topics that are often connected by clang associations or distractibility; it is
pathognomonic for mania. Distractor B (tangentiality) involves drifting away from the topic
without returning. Distractor D (loosening of associations) indicates schizophrenia with illogical
connections. Clinical pearl: Flight of ideas must be distinguished from pressured speech; the
former involves content shifts, the latter rate/volume increases.
Q6 (Psychiatric Assessment – Suicide Risk – C-SSRS): A 19-year-old college student presents
after a breakup. Using the Columbia Suicide Severity Rating Scale (C-SSRS), the PMHNP
determines the patient has had thoughts of suicide with some intent to act but no specific plan
or preparation. This corresponds to which C-SSRS severity level?
A) Passive suicidal ideation
B) Active suicidal ideation with intent but no plan
C) Active suicidal ideation with specific plan and intent
D) Suicidal behavior
[CORRECT] B
Rationale: C-SSRS categorizes active suicidal ideation with intent but no specific plan as a
moderate-risk category requiring safety planning and close monitoring. Distractor A involves
thoughts without any intent to act. Distractor C requires a formulated plan. Clinical pearl: The
C-SSRS "worst point" lifetime assessment helps distinguish chronic risk from acute escalation;
always assess means restriction regardless of severity level.
Q7 (Psychiatric Assessment – SAFE-T): The PMHNP is conducting a suicide assessment using
the SAFE-T protocol. Which of the following is NOT a core component of the SAFE-T
framework?
A) Identifying risk factors (internal and external)
B) Assessing protective factors
C) Administering the MMSE to evaluate cognitive impairment
D) Evaluating self-harm history and current intent
[CORRECT] C
Rationale: The SAFE-T (Suicide Assessment Five-step Evaluation and Triage) framework
includes identifying risk factors, assessing protective factors, conducting a detailed suicide
inquiry, determining risk level, and documenting a treatment plan; it does not include cognitive
screening tools like the MMSE. Distractor C is a common error—cognitive assessment is
important but not part of SAFE-T specifically. Clinical pearl: Always document both risk and
protective factors; strong protective factors (children, religious beliefs, therapeutic alliance) can
moderate acute risk.
Q8 (Psychiatric Assessment – SIGECAPS): A 34-year-old patient reports persistent low mood,
loss of interest in activities, difficulty falling asleep, psychomotor agitation, fatigue, poor
concentration, and feelings of worthlessness for the past 3 weeks. Using the SIGECAPS
mnemonic, how many symptoms of depression does this patient exhibit?
A) 5
B) 6
C) 7
D) 8
[CORRECT] C
, ationale: SIGECAPS = Sleep (insomnia), Interest (loss), Guilt (worthlessness), Energy
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(fatigue), Concentration (poor), Appetite (not mentioned), Psychomotor (agitation), Suicidality
(not mentioned). This patient exhibits 7 symptoms (all except appetite change and suicidality).
Distractor A undercounts by missing psychomotor changes. Clinical pearl: SIGECAPS covers all
9 DSM-5-TR criteria for MDD; remember that either depressed mood OR anhedonia must be
present, plus 4 additional symptoms.
Q9 (Neurobiology – GABA): A patient with generalized anxiety disorder is prescribed a
benzodiazepine. The anxiolytic effect is primarily mediated through:
A) GABA-A receptor antagonism, decreasing chloride influx
B) GABA-A receptor agonism, increasing chloride influx and neuronal hyperpolarization
C) GABA-B receptor agonism, decreasing calcium influx
D) Glycine receptor modulation in the spinal cord
[CORRECT] B
Rationale: Benzodiazepines bind to the benzodiazepine site on the GABA-A receptor,
allosterically enhancing GABA's effect to increase chloride influx, causing neuronal
hyperpolarization and reduced excitability. Distractor A reverses the mechanism. Distractor C
describes baclofen's mechanism. Clinical pearl: Tolerance develops rapidly due to receptor
downregulation; benzodiazepines should be limited to short-term use (2-4 weeks) in anxiety
disorders per APA guidelines.
Q10 (Neurobiology – Brain regions): A patient with PTSD demonstrates heightened startle
response, hypervigilance, and emotional reactivity to trauma reminders. These symptoms are
most associated with hyperactivity of which brain structure?
A) Prefrontal cortex
B) Hippocampus
C) Amygdala
D) Cerebellum
[CORRECT] C
Rationale: The amygdala mediates fear conditioning, threat detection, and emotional memory;
hyperactivity in PTSD explains exaggerated startle, hypervigilance, and reactivity. Distractor A
(prefrontal cortex) is typically hypoactive, impairing extinction and top-down regulation.
Distractor B (hippocampus) shows volume reduction and impaired contextual processing.
Clinical pearl: fMRI studies show amygdala hyperreactivity to trauma cues even during
remission, supporting the chronic nature of PTSD neurobiology.
Q11 (Psychiatric Assessment – Safety Planning): A 26-year-old veteran with PTSD and suicidal
ideation is being discharged from the emergency department. According to the Stanley-Brown
Safety Planning Intervention, which step should come FIRST in creating the safety plan?
A) Identifying social contacts for distraction during a crisis
B) Recognizing warning signs of an impending suicidal crisis
C) Listing professional/agency contacts for emergency use
D) Reducing access to lethal means
[CORRECT] B
Rationale: The Stanley-Brown Safety Planning Intervention follows six steps in order: (1)
Warning signs recognition, (2) Internal coping strategies, (3) Social distraction contacts, (4)
Family/friends for help, (5) Professional/agency contacts, (6) Reducing lethal means access.