AANP PMHNP CERTIFICATION EXAM | COMPLETE QUESTIONS
WITH CORRECT ANSWERS AND DETAILED RATIONALES -
LATEST UPDATE 2026/2027
DOMAINS COVERED
- ✅ Assessment and Diagnosis
- ✅ Psychopharmacology
- ✅ Psychotherapy and Psychosocial Interventions
- ✅ Professional Practice, Ethics, and Legal Issues
- ✅ Neurobiology and Medical Comorbidities
- ✅ Crisis Intervention and Emergency Psychiatry
- ✅ Child and Adolescent Psychiatry
- ✅ Geriatric Psychiatry
- ✅ Perinatal Psychiatry
- ✅ Substance Use Disorders
- ✅ Forensic Psychiatry
- ✅ Cultural Competence and Social Determinants
- ✅ Advanced Practice Leadership
- ✅ Neuroscience and Pathophysiology
- ✅ Integrative and Complementary Therapies
DOMAIN 1: ASSESSMENT AND DIAGNOSIS (Questions 1-80)
Question 1
A 26-year-old client presents with excessive worry occurring most days for the
past 9 months. The client reports difficulty sleeping, muscle tension, irritability,
and difficulty concentrating. No history of panic attacks is reported.
Which diagnosis is most consistent with these findings?
A. Panic Disorder
B. Generalized Anxiety Disorder
C. Social Anxiety Disorder
D. Adjustment Disorder
1
,Correct Answer: B. Generalized Anxiety Disorder (GAD)
Rationale: Generalized Anxiety Disorder is characterized by excessive anxiety and
worry occurring more days than not for at least six months. Symptoms include
restlessness, fatigue, poor concentration, irritability, muscle tension, and sleep
disturbance. The duration of 9 months meets the minimum 6-month
requirement, and the symptom profile aligns with GAD criteria. Panic Disorder
requires recurrent unexpected panic attacks; Social Anxiety Disorder involves fear
of social situations; Adjustment Disorder occurs within 3 months of a stressor and
resolves within 6 months.
Question 2
A client taking lithium for bipolar disorder reports nausea, coarse tremors,
diarrhea, and increasing confusion.
What is the PMHNP's priority intervention?
A. Continue the medication and reassess tomorrow
B. Hold the lithium and obtain a serum lithium level immediately
C. Administer the next dose early
D. Encourage caffeine intake
Correct Answer: B. Hold the lithium and obtain a serum lithium level immediately.
Rationale: These findings (nausea, coarse tremors, diarrhea, confusion) are classic
signs of lithium toxicity. The medication must be withheld immediately, serum
lithium levels assessed, hydration evaluated, and the prescribing provider
notified. Continuing or increasing the dose would be dangerous. Caffeine
decreases lithium levels and is not an intervention for toxicity.
Question 3
2
,Which neurotransmitter is most strongly associated with the positive symptoms
of schizophrenia?
A. Serotonin
B. Dopamine
C. GABA
D. Acetylcholine
Correct Answer: B. Dopamine
Rationale: Hyperactivity of dopamine pathways, particularly the mesolimbic
pathway, is associated with positive symptoms such as hallucinations and
delusions. Serotonin is more implicated in depression and anxiety. GABA is
inhibitory and linked to anxiety disorders. Acetylcholine is associated with
cognition and Alzheimer's disease.
Question 4
A patient diagnosed with Major Depressive Disorder begins taking sertraline. Two
weeks later, the patient reports feeling more energized but still depressed, and
now expresses a desire to harm himself.
What is the PMHNP's priority action?
A. Increase the sertraline dose immediately
B. Discontinue sertraline and start bupropion
C. Conduct a thorough suicide risk assessment and implement safety planning
D. Reassure the patient that this is normal and will pass
Correct Answer: C. Conduct a thorough suicide risk assessment and implement
safety planning.
Rationale: When a patient on an SSRI reports increased energy but persistent
depression with new suicidal ideation, there is an elevated risk for suicide
3
, because the patient now has the energy to act on their impulses. This is a
psychiatric emergency. The priority is always to assess lethality, intent, plan, and
means, followed by immediate safety planning. Medication adjustments come
after stabilization.
Question 5
A 45-year-old female reports persistent depressed mood, loss of interest in
activities, and significant weight loss over the past 4 weeks. She states she feels
tired all the time and has difficulty making decisions. She denies any history of
manic or hypomanic episodes.
What is the most likely diagnosis?
A. Major Depressive Disorder, single episode
B. Persistent Depressive Disorder (Dysthymia)
C. Bipolar II Disorder
D. Adjustment Disorder with depressed mood
Correct Answer: A. Major Depressive Disorder, single episode
Rationale: The patient meets criteria for MDD with five or more symptoms
(depressed mood, anhedonia, weight loss, fatigue, indecisiveness) present for at
least 2 weeks. The absence of manic/hypomanic episodes rules out bipolar
disorders. Persistent Depressive Disorder requires symptoms for at least 2 years,
and Adjustment Disorder occurs within 3 months of a stressor.
Question 6
A 32-year-old man presents with a 3-month history of recurrent, unexpected
panic attacks. He reports persistent worry about having additional attacks and has
changed his behavior to avoid situations where escape might be difficult. He
avoids crowded places and public transportation.
Which diagnosis is most consistent?
4
WITH CORRECT ANSWERS AND DETAILED RATIONALES -
LATEST UPDATE 2026/2027
DOMAINS COVERED
- ✅ Assessment and Diagnosis
- ✅ Psychopharmacology
- ✅ Psychotherapy and Psychosocial Interventions
- ✅ Professional Practice, Ethics, and Legal Issues
- ✅ Neurobiology and Medical Comorbidities
- ✅ Crisis Intervention and Emergency Psychiatry
- ✅ Child and Adolescent Psychiatry
- ✅ Geriatric Psychiatry
- ✅ Perinatal Psychiatry
- ✅ Substance Use Disorders
- ✅ Forensic Psychiatry
- ✅ Cultural Competence and Social Determinants
- ✅ Advanced Practice Leadership
- ✅ Neuroscience and Pathophysiology
- ✅ Integrative and Complementary Therapies
DOMAIN 1: ASSESSMENT AND DIAGNOSIS (Questions 1-80)
Question 1
A 26-year-old client presents with excessive worry occurring most days for the
past 9 months. The client reports difficulty sleeping, muscle tension, irritability,
and difficulty concentrating. No history of panic attacks is reported.
Which diagnosis is most consistent with these findings?
A. Panic Disorder
B. Generalized Anxiety Disorder
C. Social Anxiety Disorder
D. Adjustment Disorder
1
,Correct Answer: B. Generalized Anxiety Disorder (GAD)
Rationale: Generalized Anxiety Disorder is characterized by excessive anxiety and
worry occurring more days than not for at least six months. Symptoms include
restlessness, fatigue, poor concentration, irritability, muscle tension, and sleep
disturbance. The duration of 9 months meets the minimum 6-month
requirement, and the symptom profile aligns with GAD criteria. Panic Disorder
requires recurrent unexpected panic attacks; Social Anxiety Disorder involves fear
of social situations; Adjustment Disorder occurs within 3 months of a stressor and
resolves within 6 months.
Question 2
A client taking lithium for bipolar disorder reports nausea, coarse tremors,
diarrhea, and increasing confusion.
What is the PMHNP's priority intervention?
A. Continue the medication and reassess tomorrow
B. Hold the lithium and obtain a serum lithium level immediately
C. Administer the next dose early
D. Encourage caffeine intake
Correct Answer: B. Hold the lithium and obtain a serum lithium level immediately.
Rationale: These findings (nausea, coarse tremors, diarrhea, confusion) are classic
signs of lithium toxicity. The medication must be withheld immediately, serum
lithium levels assessed, hydration evaluated, and the prescribing provider
notified. Continuing or increasing the dose would be dangerous. Caffeine
decreases lithium levels and is not an intervention for toxicity.
Question 3
2
,Which neurotransmitter is most strongly associated with the positive symptoms
of schizophrenia?
A. Serotonin
B. Dopamine
C. GABA
D. Acetylcholine
Correct Answer: B. Dopamine
Rationale: Hyperactivity of dopamine pathways, particularly the mesolimbic
pathway, is associated with positive symptoms such as hallucinations and
delusions. Serotonin is more implicated in depression and anxiety. GABA is
inhibitory and linked to anxiety disorders. Acetylcholine is associated with
cognition and Alzheimer's disease.
Question 4
A patient diagnosed with Major Depressive Disorder begins taking sertraline. Two
weeks later, the patient reports feeling more energized but still depressed, and
now expresses a desire to harm himself.
What is the PMHNP's priority action?
A. Increase the sertraline dose immediately
B. Discontinue sertraline and start bupropion
C. Conduct a thorough suicide risk assessment and implement safety planning
D. Reassure the patient that this is normal and will pass
Correct Answer: C. Conduct a thorough suicide risk assessment and implement
safety planning.
Rationale: When a patient on an SSRI reports increased energy but persistent
depression with new suicidal ideation, there is an elevated risk for suicide
3
, because the patient now has the energy to act on their impulses. This is a
psychiatric emergency. The priority is always to assess lethality, intent, plan, and
means, followed by immediate safety planning. Medication adjustments come
after stabilization.
Question 5
A 45-year-old female reports persistent depressed mood, loss of interest in
activities, and significant weight loss over the past 4 weeks. She states she feels
tired all the time and has difficulty making decisions. She denies any history of
manic or hypomanic episodes.
What is the most likely diagnosis?
A. Major Depressive Disorder, single episode
B. Persistent Depressive Disorder (Dysthymia)
C. Bipolar II Disorder
D. Adjustment Disorder with depressed mood
Correct Answer: A. Major Depressive Disorder, single episode
Rationale: The patient meets criteria for MDD with five or more symptoms
(depressed mood, anhedonia, weight loss, fatigue, indecisiveness) present for at
least 2 weeks. The absence of manic/hypomanic episodes rules out bipolar
disorders. Persistent Depressive Disorder requires symptoms for at least 2 years,
and Adjustment Disorder occurs within 3 months of a stressor.
Question 6
A 32-year-old man presents with a 3-month history of recurrent, unexpected
panic attacks. He reports persistent worry about having additional attacks and has
changed his behavior to avoid situations where escape might be difficult. He
avoids crowded places and public transportation.
Which diagnosis is most consistent?
4
