PMHNP-C Psychiatric Mental Health Nurse Practitioner (PMHNP) Certification Examination Practice Questions
Prepare for PMHNP-C with more than an answer.
- 1
A 52-year-old female presents with persistent fatigue, a 16-pound weight gain, constipation, psychomotor slowing, and low mood over the past four months. Laboratory tests reveal an elevated thyroid-stimulating hormone (TSH) level of 14.8 mIU/L (reference range: 0.4–4.0 mIU/L) and low free thyroxine (FT4). How should the PMHNP interpret these diagnostic results to inform clinical decision-making?
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Correct answer: A
Hypothyroidism frequently mimics major depression; medical correction of elevated TSH must precede or accompany any psychiatric diagnostic formulation.
- 2
When interpreting the Mood Disorder Questionnaire (MDQ) to screen an adult patient presenting with treatment-resistant depression for an underlying bipolar spectrum disorder, which criteria must be satisfied to establish a positive screen?
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Correct answer: A
A valid positive MDQ screen requires at least 7 co-occurring symptom items and moderate to severe problems resulting from those symptoms.
- 3
A PMHNP evaluates a 24-year-old female who presents with affective instability, recurrent intense anger, fear of abandonment, chronic feelings of emptiness, and identity disturbance. Which clinical feature most reliably differentiates this patient's condition (Borderline Personality Disorder) from Bipolar II Disorder?
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Correct answer: D
Borderline personality disorder features rapid, reactive mood shifts lasting hours, whereas Bipolar II requires distinct hypomanic episodes lasting >= 4 days.
- 4
A 9-year-old child is brought to the outpatient psychiatric clinic by her foster parent due to severe behavioral outbursts and school refusal. Which strategy is most essential for the psychiatric mental health nurse practitioner (PMHNP) to conduct a developmentally appropriate comprehensive evaluation?
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Correct answer: B
Children express developmental stressors through play and drawing; separate interviews allow candid parent history and age-appropriate clinical observation.
- 5
A 74-year-old retired accountant is accompanied to the psychiatric clinic by his daughter. The daughter reports that over the past six months, her father has become increasingly withdrawn, stopped managing his investment portfolio, lost 12 pounds, and frequently forgets scheduled appointments. The patient states, "There is nothing wrong with me; I am just tired of feeling useless since my spouse died last year." His medical history includes type 2 diabetes mellitus, hypertension, and osteoarthritis.
On targeted examination, the patient appears unkempt and speaks with a delayed response latency. When asked questions testing recall, he frequently answers, "I don't know," without attempting to elaborate. His fasting blood glucose is 128 mg/dL and hemoglobin A1c is 7.1%.
Which initial clinical evaluation strategy is most critical for the psychiatric mental health nurse practitioner to differentiate pseudodementia (major depressive disorder) from an early primary neurocognitive disorder?
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Correct answer: A
Depressive pseudodementia features prominent 'I don't know' answers and acute functional distress, requiring formal cognitive and depressive screening with collateral.
- 6
During a mental status examination, a 28-year-old patient experiencing acute mania continuously digresses into lengthy, unnecessary details and parenthetical explanations when answering questions, but eventually reaches the point and answers the original inquiry. Which thought process abnormality does the PMHNP document?
flowchart LR Start[Clinical Question] --> D1[Irrelevant Detail 1] D1 --> D2[Irrelevant Detail 2] D2 --> D3[Excessive Anecdote] D3 --> Goal[Reaches Original Point]Show answer details
Correct answer: A
Circumstantiality involves tedious overinclusion of details before ultimately reaching the goal of thought, unlike tangentiality which never returns to the point.
