, Barkley PMHNP Diagnosis and Treatment Planning Exam
Questions and Answers with Rationale 2026/2027
Question 1
A 35-year-old female presents to the outpatient psychiatric clinic with
complaints of persistent, excessive worry, muscle tension, and
restlessness occurring more days than not for the past 8 months. She is
diagnosed with Generalized Anxiety Disorder (GAD). According to
current psychiatric treatment guidelines, which of the following
pharmacological agents represents the first-line pharmacotherapy for this
patient?
A. Alprazolam
B. Escitalopram
C. Haloperidol
D. Methylphenidate
Correct Answer: B. Escitalopram
Rationale: Selective serotonin reuptake inhibitors (SSRIs), such as
escitalopram or sertraline, and serotonin-norepinephrine reuptake
inhibitors (SNRIs) represent the first-line pharmacological treatment for
Generalized Anxiety Disorder due to their proven efficacy and favorable
safety profile compared to benzodiazepines.
Question 2
A 29-year-old male is initiated on sertraline 50 mg daily for Major
Depressive Disorder. During his 2-week follow-up visit, he reports mild
nausea and jitteriness but no improvement in mood yet. What is the most
appropriate clinical action for the PMHNP?
, A. Immediately discontinue sertraline and switch to a tricyclic
antidepressant
B. Reassure the patient that side effects often subside and therapeutic
response to SSRIs typically takes 4 to 6 weeks
C. Double the dose immediately to accelerate therapeutic onset
D. Add a high-potency typical antipsychotic for acute mood
stabilization
Correct Answer: B. Reassure the patient that side effects often subside
and therapeutic response to SSRIs typically takes 4 to 6 weeks
Rationale: Early side effects of SSRIs (such as nausea and jitteriness)
frequently diminish over the first couple of weeks, while full
therapeutic antidepressant efficacy requires 4 to 6 weeks of
continuous administration. Premature discontinuation leads to
unnecessary treatment failure.
Question 3
A 42-year-old male with Bipolar I Disorder is prescribed lithium
carbonate for acute mania and long-term maintenance. Prior to initiating
lithium therapy, which of the following baseline laboratory and
diagnostic evaluations is mandatory?
A. Complete blood count and liver function tests only
B. Serum creatinine, thyroid-stimulating hormone (TSH), and an
electrocardiogram (ECG) for patients over 50 or with cardiac risk
C. Electroencephalogram (EEG) and fasting lipid panel
D. Serum cortisol and HbA1c
, Correct Answer: B. Serum creatinine, thyroid-stimulating hormone
(TSH), and an electrocardiogram (ECG) for patients over 50 or with
cardiac risk
Rationale: Lithium is excreted renally and can affect renal and thyroid
function over time. Baseline assessments must include renal
function (serum creatinine/BUN/eGFR), thyroid function (TSH),
and baseline cardiac evaluation (ECG) because lithium can affect
cardiac conduction.
Question 4
A 24-year-old female is evaluated for Schizophrenia and is being started
on a new antipsychotic medication. The PMHNP selects a medication
known for a high risk of extrapyramidal symptoms (EPS) and
hyperprolactinemia, requiring baseline and ongoing monitoring of
abnormal involuntary movements using the AIMS scale. Which of the
following antipsychotics fits this pharmacological profile?
A. Aripiprazole
B. Quetiapine
C. Haloperidol
D. Clozapine
Correct Answer: C. Haloperidol
Rationale: First-generation (typical) antipsychotics like haloperidol
have a high affinity for D2 dopamine receptors in the nigrostriatal
pathway, resulting in a significantly elevated risk of
extrapyramidal symptoms and prolactin elevation compared to
second-generation atypical agents.
Question 5
Questions and Answers with Rationale 2026/2027
Question 1
A 35-year-old female presents to the outpatient psychiatric clinic with
complaints of persistent, excessive worry, muscle tension, and
restlessness occurring more days than not for the past 8 months. She is
diagnosed with Generalized Anxiety Disorder (GAD). According to
current psychiatric treatment guidelines, which of the following
pharmacological agents represents the first-line pharmacotherapy for this
patient?
A. Alprazolam
B. Escitalopram
C. Haloperidol
D. Methylphenidate
Correct Answer: B. Escitalopram
Rationale: Selective serotonin reuptake inhibitors (SSRIs), such as
escitalopram or sertraline, and serotonin-norepinephrine reuptake
inhibitors (SNRIs) represent the first-line pharmacological treatment for
Generalized Anxiety Disorder due to their proven efficacy and favorable
safety profile compared to benzodiazepines.
Question 2
A 29-year-old male is initiated on sertraline 50 mg daily for Major
Depressive Disorder. During his 2-week follow-up visit, he reports mild
nausea and jitteriness but no improvement in mood yet. What is the most
appropriate clinical action for the PMHNP?
, A. Immediately discontinue sertraline and switch to a tricyclic
antidepressant
B. Reassure the patient that side effects often subside and therapeutic
response to SSRIs typically takes 4 to 6 weeks
C. Double the dose immediately to accelerate therapeutic onset
D. Add a high-potency typical antipsychotic for acute mood
stabilization
Correct Answer: B. Reassure the patient that side effects often subside
and therapeutic response to SSRIs typically takes 4 to 6 weeks
Rationale: Early side effects of SSRIs (such as nausea and jitteriness)
frequently diminish over the first couple of weeks, while full
therapeutic antidepressant efficacy requires 4 to 6 weeks of
continuous administration. Premature discontinuation leads to
unnecessary treatment failure.
Question 3
A 42-year-old male with Bipolar I Disorder is prescribed lithium
carbonate for acute mania and long-term maintenance. Prior to initiating
lithium therapy, which of the following baseline laboratory and
diagnostic evaluations is mandatory?
A. Complete blood count and liver function tests only
B. Serum creatinine, thyroid-stimulating hormone (TSH), and an
electrocardiogram (ECG) for patients over 50 or with cardiac risk
C. Electroencephalogram (EEG) and fasting lipid panel
D. Serum cortisol and HbA1c
, Correct Answer: B. Serum creatinine, thyroid-stimulating hormone
(TSH), and an electrocardiogram (ECG) for patients over 50 or with
cardiac risk
Rationale: Lithium is excreted renally and can affect renal and thyroid
function over time. Baseline assessments must include renal
function (serum creatinine/BUN/eGFR), thyroid function (TSH),
and baseline cardiac evaluation (ECG) because lithium can affect
cardiac conduction.
Question 4
A 24-year-old female is evaluated for Schizophrenia and is being started
on a new antipsychotic medication. The PMHNP selects a medication
known for a high risk of extrapyramidal symptoms (EPS) and
hyperprolactinemia, requiring baseline and ongoing monitoring of
abnormal involuntary movements using the AIMS scale. Which of the
following antipsychotics fits this pharmacological profile?
A. Aripiprazole
B. Quetiapine
C. Haloperidol
D. Clozapine
Correct Answer: C. Haloperidol
Rationale: First-generation (typical) antipsychotics like haloperidol
have a high affinity for D2 dopamine receptors in the nigrostriatal
pathway, resulting in a significantly elevated risk of
extrapyramidal symptoms and prolactin elevation compared to
second-generation atypical agents.
Question 5
