Barkley PMHNP Exam 2026 | Practice
Questions, Correct Answers & Detailed
Rationales | PMHNP Exam Prep
BARKLEY PMHNP EXAM 2026 | PRACTICE QUESTIONS & DETAILED RATIONALES
DOCUMENT OVERVIEW:
• Comprehensive question practice exam designed to simulate the actual PMHNP
certification test, featuring evidence-based questions across all major psychiatric
domains with clinical scenarios and evidence-based practice applications
• Study strategy: Review each question carefully, attempt to identify the correct
answer before checking, then read the detailed rationale to reinforce foundational
knowledge and clinical decision-making skills across psychiatric-mental health
nursing practice
QUESTION 1
A 45-year-old male presents with persistent depressed mood, anhedonia,
sleep disturbance, and feelings of worthlessness for the past 3 weeks. He
denies suicidal ideation but reports difficulty concentrating at work. What is
the minimum duration of symptoms required to diagnose Major Depressive
Disorder?
A) 1 week
B) 2 weeks
C) 2 weeks with at least five symptoms present
D) 3 weeks with at least three symptoms present
E) 4 weeks with functional impairment
CORRECT ANSWER: C) 2 weeks with at least five symptoms present
RATIONALE: Major Depressive Disorder requires a minimum of 2 weeks of
depressed mood or loss of interest/pleasure in activities, accompanied by at least
four additional symptoms from the DSM-5 criteria (sleep, appetite, energy,
,concentration, guilt, psychomotor symptoms, or suicidality). The symptoms must
cause clinically significant distress or functional impairment. This patient meets
criteria with depressed mood, anhedonia, sleep disturbance, concentration
difficulty, and feelings of worthlessness—five symptoms total—meeting the
diagnostic threshold.
QUESTION 2
A 28-year-old female with bipolar I disorder has been stable on lithium
carbonate 900 mg daily for 18 months. At her routine appointment, her serum
lithium level is 1.8 mEq/L. She reports mild tremor and diarrhea but denies
other concerning symptoms. What is the most appropriate clinical action?
A) Continue current dose and monitor level in 3 months
B) Reduce dose immediately to achieve level of 0.6-1.2 mEq/L
C) Add a beta-blocker for tremor management
D) Perform renal and thyroid function tests; consider dose adjustment
E) Discontinue lithium and switch to valproate
CORRECT ANSWER: D) Perform renal and thyroid function tests; consider dose
adjustment
RATIONALE: A lithium level of 1.8 mEq/L is elevated (therapeutic range is 0.6-1.2
mEq/L for maintenance). While not in the toxicity range (>2.0 mEq/L), this level
warrants investigation for underlying causes such as dehydration, renal
impairment, or drug interactions. Tremor and diarrhea are early signs of lithium
toxicity. Renal and thyroid function must be assessed because long-term lithium
use can cause nephrogenic diabetes insipidus and hypothyroidism. A dose
reduction is likely needed, but only after ruling out underlying causes.
,QUESTION 3
A 32-year-old male with schizophrenia has been experiencing hallucinations
and delusions despite treatment with risperidone 4 mg daily for 6 weeks. The
patient is compliant with medication. What is the next best step in
pharmacological management?
A) Increase risperidone to 6 mg daily
B) Switch to clozapine after appropriate monitoring
C) Add an anticonvulsant mood stabilizer
D) Combine risperidone with haloperidol
E) Discontinue risperidone and try aripiprazole
CORRECT ANSWER: B) Switch to clozapine after appropriate monitoring
RATIONALE: This patient has treatment-resistant schizophrenia, defined as
inadequate response to two antipsychotics at therapeutic doses for adequate trial
periods (4-6 weeks). Clozapine is the gold standard for treatment-resistant
schizophrenia, with 30-50% response rates in this population. Before initiating
clozapine, baseline assessment must include complete blood count, metabolic
panel, and EKG. Regular monitoring of white blood cell count is required due to
agranulocytosis risk. Other options (increasing dose, adding agents, or switching to
another first-generation or atypical antipsychotic) are not indicated at this stage.
QUESTION 4
A 19-year-old female college student presents with sudden onset of fear of
having a panic attack while in crowds or public places where escape might be
difficult. She now avoids attending classes and social events. What is the most
likely diagnosis?
A) Social Anxiety Disorder
B) Specific Phobia
, C) Agoraphobia
D) Generalized Anxiety Disorder
E) Panic Disorder with Agoraphobia
CORRECT ANSWER: C) Agoraphobia
RATIONALE: Agoraphobia is characterized by fear and avoidance of places or
situations where escape might be difficult or embarrassing, or where help is
unavailable if panic symptoms occur. Key features include anxiety about being in
crowds, public transportation, open spaces, or being outside the home. This
patient's fear of being in crowds, concern about panic attacks, and avoidance of
classrooms and social settings are classic presentations. While panic attacks may
occur, the diagnosis is agoraphobia rather than panic disorder because the primary
focus is on the fear of having a panic attack in inescapable situations, not the panic
attacks themselves.
QUESTION 5
A 56-year-old man with Major Depressive Disorder has failed trials of two
SSRIs and one tricyclic antidepressant. His psychiatrist suggests
electroconvulsive therapy (ECT). Which statement best reflects the current
evidence regarding ECT?
A) ECT is contraindicated in patients over age 50
B) ECT is most effective for depression with psychotic features and severe
depression
C) ECT causes permanent cognitive impairment in all patients
D) ECT requires only written consent and baseline EKG
E) ECT is the first-line treatment for all mood disorders
CORRECT ANSWER: B) ECT is most effective for depression with psychotic
features and severe depression
Questions, Correct Answers & Detailed
Rationales | PMHNP Exam Prep
BARKLEY PMHNP EXAM 2026 | PRACTICE QUESTIONS & DETAILED RATIONALES
DOCUMENT OVERVIEW:
• Comprehensive question practice exam designed to simulate the actual PMHNP
certification test, featuring evidence-based questions across all major psychiatric
domains with clinical scenarios and evidence-based practice applications
• Study strategy: Review each question carefully, attempt to identify the correct
answer before checking, then read the detailed rationale to reinforce foundational
knowledge and clinical decision-making skills across psychiatric-mental health
nursing practice
QUESTION 1
A 45-year-old male presents with persistent depressed mood, anhedonia,
sleep disturbance, and feelings of worthlessness for the past 3 weeks. He
denies suicidal ideation but reports difficulty concentrating at work. What is
the minimum duration of symptoms required to diagnose Major Depressive
Disorder?
A) 1 week
B) 2 weeks
C) 2 weeks with at least five symptoms present
D) 3 weeks with at least three symptoms present
E) 4 weeks with functional impairment
CORRECT ANSWER: C) 2 weeks with at least five symptoms present
RATIONALE: Major Depressive Disorder requires a minimum of 2 weeks of
depressed mood or loss of interest/pleasure in activities, accompanied by at least
four additional symptoms from the DSM-5 criteria (sleep, appetite, energy,
,concentration, guilt, psychomotor symptoms, or suicidality). The symptoms must
cause clinically significant distress or functional impairment. This patient meets
criteria with depressed mood, anhedonia, sleep disturbance, concentration
difficulty, and feelings of worthlessness—five symptoms total—meeting the
diagnostic threshold.
QUESTION 2
A 28-year-old female with bipolar I disorder has been stable on lithium
carbonate 900 mg daily for 18 months. At her routine appointment, her serum
lithium level is 1.8 mEq/L. She reports mild tremor and diarrhea but denies
other concerning symptoms. What is the most appropriate clinical action?
A) Continue current dose and monitor level in 3 months
B) Reduce dose immediately to achieve level of 0.6-1.2 mEq/L
C) Add a beta-blocker for tremor management
D) Perform renal and thyroid function tests; consider dose adjustment
E) Discontinue lithium and switch to valproate
CORRECT ANSWER: D) Perform renal and thyroid function tests; consider dose
adjustment
RATIONALE: A lithium level of 1.8 mEq/L is elevated (therapeutic range is 0.6-1.2
mEq/L for maintenance). While not in the toxicity range (>2.0 mEq/L), this level
warrants investigation for underlying causes such as dehydration, renal
impairment, or drug interactions. Tremor and diarrhea are early signs of lithium
toxicity. Renal and thyroid function must be assessed because long-term lithium
use can cause nephrogenic diabetes insipidus and hypothyroidism. A dose
reduction is likely needed, but only after ruling out underlying causes.
,QUESTION 3
A 32-year-old male with schizophrenia has been experiencing hallucinations
and delusions despite treatment with risperidone 4 mg daily for 6 weeks. The
patient is compliant with medication. What is the next best step in
pharmacological management?
A) Increase risperidone to 6 mg daily
B) Switch to clozapine after appropriate monitoring
C) Add an anticonvulsant mood stabilizer
D) Combine risperidone with haloperidol
E) Discontinue risperidone and try aripiprazole
CORRECT ANSWER: B) Switch to clozapine after appropriate monitoring
RATIONALE: This patient has treatment-resistant schizophrenia, defined as
inadequate response to two antipsychotics at therapeutic doses for adequate trial
periods (4-6 weeks). Clozapine is the gold standard for treatment-resistant
schizophrenia, with 30-50% response rates in this population. Before initiating
clozapine, baseline assessment must include complete blood count, metabolic
panel, and EKG. Regular monitoring of white blood cell count is required due to
agranulocytosis risk. Other options (increasing dose, adding agents, or switching to
another first-generation or atypical antipsychotic) are not indicated at this stage.
QUESTION 4
A 19-year-old female college student presents with sudden onset of fear of
having a panic attack while in crowds or public places where escape might be
difficult. She now avoids attending classes and social events. What is the most
likely diagnosis?
A) Social Anxiety Disorder
B) Specific Phobia
, C) Agoraphobia
D) Generalized Anxiety Disorder
E) Panic Disorder with Agoraphobia
CORRECT ANSWER: C) Agoraphobia
RATIONALE: Agoraphobia is characterized by fear and avoidance of places or
situations where escape might be difficult or embarrassing, or where help is
unavailable if panic symptoms occur. Key features include anxiety about being in
crowds, public transportation, open spaces, or being outside the home. This
patient's fear of being in crowds, concern about panic attacks, and avoidance of
classrooms and social settings are classic presentations. While panic attacks may
occur, the diagnosis is agoraphobia rather than panic disorder because the primary
focus is on the fear of having a panic attack in inescapable situations, not the panic
attacks themselves.
QUESTION 5
A 56-year-old man with Major Depressive Disorder has failed trials of two
SSRIs and one tricyclic antidepressant. His psychiatrist suggests
electroconvulsive therapy (ECT). Which statement best reflects the current
evidence regarding ECT?
A) ECT is contraindicated in patients over age 50
B) ECT is most effective for depression with psychotic features and severe
depression
C) ECT causes permanent cognitive impairment in all patients
D) ECT requires only written consent and baseline EKG
E) ECT is the first-line treatment for all mood disorders
CORRECT ANSWER: B) ECT is most effective for depression with psychotic
features and severe depression
