Q&A with Rationales for Purdue
Global PMHNP
Ace the NU 671 Final Exam at Purdue Global with this comprehensive 2026 study guide. This
premium resource features exam-style questions, verified correct answers, and detailed
rationales to solidify your understanding of advanced psychiatric-mental health concepts .
Covering core topics from the Mental Status Exam (MSE) and DSM-5 criteria to
psychopharmacology and psychotherapy, this guide is designed to reinforce clinical reasoning
and help you achieve an A grade. Perfect for PMHNP students seeking to master complex
material and pass with confidence on their first try.
1. What is the single most important predictor of positive outcomes in
psychotherapy?
A) The therapist’s theoretical orientation
B) The therapeutic alliance/relationship
C) The frequency of sessions
D) The use of homework assignments
Answer: B) The therapeutic alliance/relationship
Rationale: Meta-analyses consistently demonstrate that the quality of the
therapeutic relationship accounts for more variance in treatment
outcomes than any specific technique or modality.
2. Which brain structure is primarily responsible for processing fear and
emotional memory?
A) Hippocampus
B) Prefrontal cortex
, C) Amygdala
D) Thalamus
Answer: C) Amygdala
Rationale: The amygdala is the brain's fear center; it processes threat
detection and emotional salience. The hippocampus is involved in
contextual memory, while the prefrontal cortex regulates emotional
responses.
3. A patient presents with a sustained, pervasive low mood for over 2 years. They
have never had a manic or hypomanic episode. What is the most likely
diagnosis?
A) Major Depressive Disorder, recurrent
B) Persistent Depressive Disorder (Dysthymia)
C) Adjustment Disorder with depressed mood
D) Bipolar II Disorder
Answer: B) Persistent Depressive Disorder (Dysthymia)
Rationale: Persistent Depressive Disorder requires depressed mood for at
least 2 years in adults (1 year in children/adolescents) with no
manic/hypomanic episodes. MDD episodes are discrete and last at least 2
weeks.
4. In Motivational Interviewing (MI), which of the following is considered a
"complex reflection"?
A) Repeating the client's words exactly
B) Making a guess about the unspoken meaning behind the client's statement
C) Asking a closed-ended question
D) Giving direct advice
Answer: B) Making a guess about the unspoken meaning behind the
client's statement
Rationale: Simple reflection repeats or paraphrases; complex reflection
adds depth by inferring unspoken emotions or meanings, which helps
clients explore ambivalence.
5. What is the minimum duration of symptoms required for a diagnosis of
Generalized Anxiety Disorder (GAD) in adults?
A) 2 weeks
, B) 1 month
C) 3 months
D) 6 months
Answer: D) 6 months
Rationale: DSM-5 criteria for GAD require excessive anxiety and worry
occurring more days than not for at least 6 months, about a number of
events or activities.
6. Which of the following is a first-line pharmacologic treatment for Generalized
Anxiety Disorder?
A) Alprazolam
B) Buspirone
C) Hydroxyzine
D) Propranolol
Answer: B) Buspirone
Rationale: SSRIs (e.g., escitalopram) and SNRIs (e.g., venlafaxine) are
first-line, but among the options, buspirone is an FDA-approved non-
benzodiazepine anxiolytic. Alprazolam is avoided long-term due to
dependence risk.
7. In the Mental Status Exam (MSE), what is the difference between "mood" and
"affect"?
A) Mood is observed; affect is reported
B) Mood is the sustained internal emotional state; affect is the external
observable expression
C) Mood is only assessed in depression; affect is only assessed in psychosis
D) There is no difference; the terms are interchangeable
Answer: B) Mood is the sustained internal emotional state; affect is the
external observable expression
Rationale: Mood is the subjective, sustained feeling state reported by the
patient (e.g., "sad"), while affect is the clinician's objective observation of
emotional expression (e.g., flat, blunted, labile).
8. Which medication is FDA-approved for the treatment of bulimia nervosa?
A) Topiramate
B) Fluoxetine
, C) Lisdexamfetamine
D) Olanzapine
Answer: B) Fluoxetine
Rationale: Fluoxetine is the only SSRI FDA-approved for bulimia nervosa
at doses of 60 mg/day. Lisdexamfetamine is approved for binge-eating
disorder, not bulimia.
9. A patient with PTSD is experiencing intrusive memories, avoidance, negative
cognitions, and hyperarousal. Which of the following psychotherapies has the
strongest evidence base for PTSD?
A) Psychodynamic therapy
B) Prolonged Exposure (PE) therapy
C) Supportive counseling
D) Interpersonal therapy
Answer: B) Prolonged Exposure (PE) therapy
Rationale: PE, along with Cognitive Processing Therapy (CPT) and EMDR,
are trauma-focused therapies with strong evidence; PE specifically targets
avoidance through imaginal and in vivo exposure.
10. In the context of substance use disorders, what does "tolerance" refer to?
A) A syndrome of symptoms when the substance is reduced or stopped
B) A need for markedly increased amounts of the substance to achieve the
desired effect
C) Persistent desire or unsuccessful efforts to cut down use
D) Recurrent use resulting in failure to fulfill major role obligations
Answer: B) A need for markedly increased amounts of the substance to
achieve the desired effect
Rationale: Tolerance is a pharmacologic criterion (DSM-5) defined by
either needing more of the substance for the same effect or a diminished
effect with the same amount. Withdrawal is a separate criterion.
11. Which of the following is a negative symptom of schizophrenia?
A) Hallucinations
B) Delusions
C) Avolition
D) Disorganized speech