NRNP 6665 FINAL EXAM MEGA TEST BANK
2026-2027 VERIFIED QUESTIONS & ROBUST
RATIONALES WALDEN UNIVERSITY PMHNP
REVIEW
This premium master test bank provides a comprehensive, high-density
review meticulously aligned with the Walden University NRNP 6665
curriculum and the latest DSM-5-TR updates. Each multiple-choice
question features highlighted correct answers and robust, evidence-based
rationales designed to sharpen diagnostic reasoning, psychopharmacology
expertise, and lifespan clinical practice. It serves as an indispensable, high-
yield study resource guaranteed to help psychiatric-mental health nurse
practitioner students ace their final exams and board certifications.
1. A 7-year-old child displays persistent irritability,
frequent severe temper outbursts out of
proportion to the situation, and chronic angry
moods between outbursts for the past 14
months. Symptoms occur across multiple
settings. Which diagnosis is most appropriate?
A) Oppositional Defiant Disorder (ODD)
B) Disruptive Mood Dysregulation Disorder
(DMDD)
C) Bipolar I Disorder
D) Conduct Disorder
Correct Answer: B) Disruptive Mood
, Dysregulation Disorder (DMDD)
Rationale: DMDD is characterized by severe,
recurrent temper outbursts and a persistent
irritable or angry mood between outbursts for
at least 12 months in children aged 6 to 18.
Unlike ODD, DMDD involves severe mood
disruption and carries a higher risk for
developing depressive disorders rather than
antisocial traits.
2. When initiating stimulant medication for a 9year-
old diagnosed with ADHD, which baseline
medical assessment is mandatory?
A) Electroencephalogram (EEG)
B) Liver function tests (LFTs)
C) Height, weight, blood pressure, and heart rate
D) Thyroid stimulating hormone (TSH) Correct
Answer: C) Height, weight, blood pressure,
and heart rate
Rationale: Stimulant medications carry risks of
appetite suppression, growth deceleration, and
transient increases in heart rate and blood
pressure. Baseline cardiac parameters and
, growth charts must be established and tracked
at every follow-up visit.
3. A 15-year-old adolescent presents with a
body mass index (BMI) at the 12th percentile,
an intense fear of gaining weight, and a
distorted body image. The patient has
restricted food intake for 6 months. What is
the primary diagnosis?
A) Bulimia Nervosa
B) Avoidant/Restrictive Food Intake Disorder
(ARFID)
C) Anorexia Nervosa, restricting type
D) Binge Eating Disorder
Correct Answer: C) Anorexia Nervosa,
restricting type
Rationale: Anorexia Nervosa requires
significantly low body weight, fear of weight
gain, and body image distortion. In adolescents,
a BMI below the 15th percentile often signifies
significantly low weight. ARFID is incorrect
because it does not involve body image
distortion.
, 4. Which screening tool is specifically validated
to evaluate the severity and presence of
depression in adolescents within clinical
settings? A) SCARED
B) PHQ-A
C) Vanderbilt Scale
D) M-CHAT
Correct Answer: B) PHQ-A
Rationale: The Patient Health
QuestionnaireModified for Adolescents (PHQ-
A) is a validated tool for screening depression
in ages 11–18. SCARED screens for anxiety,
Vanderbilt screens for ADHD, and M-CHAT
screens for autism in toddlers.
5. A 16-year-old client reports waking up
frequently during the night due to vivid,
terrifying nightmares involving a past
physical assault. The client avoids the
location where the assault
occurred and expresses constant
hypervigilance. Which medication is first-line to
specifically target PTSD-related nightmares?
A) Clonazepam
2026-2027 VERIFIED QUESTIONS & ROBUST
RATIONALES WALDEN UNIVERSITY PMHNP
REVIEW
This premium master test bank provides a comprehensive, high-density
review meticulously aligned with the Walden University NRNP 6665
curriculum and the latest DSM-5-TR updates. Each multiple-choice
question features highlighted correct answers and robust, evidence-based
rationales designed to sharpen diagnostic reasoning, psychopharmacology
expertise, and lifespan clinical practice. It serves as an indispensable, high-
yield study resource guaranteed to help psychiatric-mental health nurse
practitioner students ace their final exams and board certifications.
1. A 7-year-old child displays persistent irritability,
frequent severe temper outbursts out of
proportion to the situation, and chronic angry
moods between outbursts for the past 14
months. Symptoms occur across multiple
settings. Which diagnosis is most appropriate?
A) Oppositional Defiant Disorder (ODD)
B) Disruptive Mood Dysregulation Disorder
(DMDD)
C) Bipolar I Disorder
D) Conduct Disorder
Correct Answer: B) Disruptive Mood
, Dysregulation Disorder (DMDD)
Rationale: DMDD is characterized by severe,
recurrent temper outbursts and a persistent
irritable or angry mood between outbursts for
at least 12 months in children aged 6 to 18.
Unlike ODD, DMDD involves severe mood
disruption and carries a higher risk for
developing depressive disorders rather than
antisocial traits.
2. When initiating stimulant medication for a 9year-
old diagnosed with ADHD, which baseline
medical assessment is mandatory?
A) Electroencephalogram (EEG)
B) Liver function tests (LFTs)
C) Height, weight, blood pressure, and heart rate
D) Thyroid stimulating hormone (TSH) Correct
Answer: C) Height, weight, blood pressure,
and heart rate
Rationale: Stimulant medications carry risks of
appetite suppression, growth deceleration, and
transient increases in heart rate and blood
pressure. Baseline cardiac parameters and
, growth charts must be established and tracked
at every follow-up visit.
3. A 15-year-old adolescent presents with a
body mass index (BMI) at the 12th percentile,
an intense fear of gaining weight, and a
distorted body image. The patient has
restricted food intake for 6 months. What is
the primary diagnosis?
A) Bulimia Nervosa
B) Avoidant/Restrictive Food Intake Disorder
(ARFID)
C) Anorexia Nervosa, restricting type
D) Binge Eating Disorder
Correct Answer: C) Anorexia Nervosa,
restricting type
Rationale: Anorexia Nervosa requires
significantly low body weight, fear of weight
gain, and body image distortion. In adolescents,
a BMI below the 15th percentile often signifies
significantly low weight. ARFID is incorrect
because it does not involve body image
distortion.
, 4. Which screening tool is specifically validated
to evaluate the severity and presence of
depression in adolescents within clinical
settings? A) SCARED
B) PHQ-A
C) Vanderbilt Scale
D) M-CHAT
Correct Answer: B) PHQ-A
Rationale: The Patient Health
QuestionnaireModified for Adolescents (PHQ-
A) is a validated tool for screening depression
in ages 11–18. SCARED screens for anxiety,
Vanderbilt screens for ADHD, and M-CHAT
screens for autism in toddlers.
5. A 16-year-old client reports waking up
frequently during the night due to vivid,
terrifying nightmares involving a past
physical assault. The client avoids the
location where the assault
occurred and expresses constant
hypervigilance. Which medication is first-line to
specifically target PTSD-related nightmares?
A) Clonazepam
