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Domain 1: Foundations of Advanced Practice Nursing (25 Questions)
Q1: A 34-year-old female presents to the PMHNP clinic with complaints of persistent
low mood, anhedonia, fatigue, and difficulty concentrating for the past 6 months. She
reports that these symptoms began shortly after she started working night shifts as a
nurse 8 months ago. She has difficulty falling asleep during the day and often feels
groggy during her shifts. She denies suicidal ideation, psychotic symptoms, or
substance use. Her PHQ-9 score is 12. Which is the most appropriate initial
intervention?
A. Initiate fluoxetine 20 mg daily and recommend light therapy
B. Recommend cognitive behavioral therapy for insomnia (CBT-I) and circadian rhythm
interventions, with follow-up to assess for persistent depressive disorder if symptoms
continue after sleep stabilization [CORRECT]
C. Diagnose major depressive disorder and initiate sertraline 50 mg daily immediately
D. Order polysomnography to rule out obstructive sleep apnea before any psychiatric
intervention
Correct Answer: B
Rationale: This patient presents with depressive symptoms temporally related to
circadian rhythm disruption from night shift work. While her PHQ-9 score of 12 indicates
,moderate depression, the etiology appears secondary to circadian rhythm sleep-wake
disorder, shift work type (ICSD-3) rather than primary major depressive disorder (MDD).
The most appropriate initial approach addresses the underlying sleep disturbance
through CBT-I, sleep hygiene optimization (dark, quiet sleep environment during day),
strategic light exposure (bright light during shifts, sunglasses during morning commute
home), and melatonin timing if needed.
Option A is incorrect because initiating antidepressant without addressing the primary
circadian disruption may lead to unnecessary long-term medication and fails to treat the
root cause. Option C is premature—while symptoms meet criteria for depression, the
temporal relationship to shift work and absence of prior episodes suggests secondary
depression that may resolve with sleep stabilization; diagnosing MDD without this trial
of sleep-focused intervention could lead to overtreatment. Option D is unnecessary as
there are no red flags for sleep apnea (no snoring, obesity, or witnessed apneas
reported), and delaying psychiatric intervention is inappropriate given functional
impairment.
If depressive symptoms persist beyond 2-3 months after sleep optimization,
re-evaluation for persistent depressive disorder or MDD would be indicated, potentially
with antidepressant therapy.
Q2: A PMHNP is conducting a comprehensive psychiatric evaluation of a 28-year-old
male veteran. The patient reports recurrent intrusive memories of combat experiences,
hypervigilance, emotional numbing, and avoidance of crowded places for the past 18
months. He admits to drinking 6-8 beers nightly to "calm his nerves" and has
,experienced blackouts twice in the past month. Which assessment priority is most
critical before initiating treatment?
A. Detailed military service record review to confirm combat exposure
B. Comprehensive substance use assessment including CIWA-Ar protocol and
determination of withdrawal risk, with potential need for medically supervised
detoxification [CORRECT]
C. Immediate initiation of prazosin for PTSD nightmares
D. Administration of the MMPI-2 to rule out malingering
Correct Answer: B
Rationale: This patient presents with comorbid PTSD and alcohol use disorder, severe
(6-8 drinks nightly, blackouts indicating binge drinking). The presence of alcohol
withdrawal risk takes immediate clinical priority due to potential life-threatening
complications (seizures, delirium tremens). Before any psychiatric medication initiation,
the PMHNP must assess: drinking pattern, time since last drink, prior withdrawal history,
medical comorbidities, and current withdrawal symptoms using CIWA-Ar (Clinical
Institute Withdrawal Assessment for Alcohol). If moderate-high withdrawal risk exists,
referral for medically supervised detoxification is required before outpatient PTSD
treatment.
Option A, while relevant for disability claims, does not take priority over acute medical
safety. Option C is contraindicated until alcohol use is stabilized—prazosin can cause
hypotension, and alcohol withdrawal can destabilize cardiovascular status; additionally,
treating PTSD while active alcohol use disorder remains unaddressed yields poor
outcomes. Option D is inappropriate and potentially harmful; the MMPI-2 is not used to
"rule out malingering" in clinical settings, and suspecting deception without cause
, damages therapeutic alliance. The patient's symptoms are consistent with genuine
PTSD presentation in veterans.
Q3: A 19-year-old college student is brought to the emergency department by campus
security after being found wandering confused outside her dormitory at 2 AM. She is
disoriented, her speech is pressured and tangential, and she reports that "the colors are
singing and the walls are breathing." Vital signs reveal HR 118, BP 142/88, Temp 99.1°F,
RR 20. Pupils are dilated at 6 mm bilaterally. Which substance is most likely
responsible?
A. Ethanol intoxication
B. Lysergic acid diethylamide (LSD) or psilocybin intoxication [CORRECT]
C. Heroin overdose
D. Benzodiazepine withdrawal
Correct Answer: B
Rationale: The presentation of sympathomimetic activation (tachycardia, hypertension,
hyperthermia), mydriasis (dilated pupils), and visual hallucinations with synesthesia
(colors singing—crossing of sensory modalities) is classic for psychedelic/hallucinogen
intoxication, specifically LSD or psilocybin. The "breathing walls" describe visual
perceptual changes characteristic of these substances. The patient's age and college
setting increase probability of hallucinogen use.
Option A (ethanol) typically causes CNS depression, ataxia, and nystagmus, not
sympathomimetic signs or vivid visual hallucinations. Option C (heroin) presents with