NRNP 6635 PSYCHOPATHOLOGY AND DIAGNOSTIC
REASONING MIDTERM EXAM 2026/2027 | Latest Study Guide
| Walden University | Pass Guaranteed - A+ Graded
Domain 1: Foundations of Psychopathology & Diagnostic Process (12 Questions)
Q1: A 24-year-old graduate student presents for evaluation stating, "I think I'm losing my
mind. For the past three months, I've been convinced my professors are monitoring my
thoughts through hidden devices in the classroom. I stopped attending classes because
I hear them whispering about my failures even when I'm alone in my apartment. My
roommate says he doesn't hear anything, but I know they're using advanced technology
to project voices into my room." The patient is well-groomed, makes appropriate eye
contact, and shows full affective range when discussing his family. He scores 28/30 on
the Montreal Cognitive Assessment. Urine toxicology is negative. What is the most
appropriate initial diagnostic consideration?
A. Schizophrenia, based on the presence of clear psychotic symptoms including
delusions and hallucinations
B. Delusional Disorder, persecutory type, given the non-bizarre delusions and preserved
functioning outside the delusional theme
C. Brief Psychotic Disorder, as the symptoms have lasted less than six months and may
resolve spontaneously
D. Obsessive-Compulsive Disorder with poor insight, as the patient shows overvalued
ideas about monitoring [CORRECT]
Correct Answer: D
,Rationale: This case requires careful differential diagnosis between primary psychotic
disorders and OCD with poor insight. Key diagnostic reasoning points: The patient
demonstrates overvalued ideas rather than fixed delusions—he uses words like "I think"
and "convinced" suggesting some doubt, and critically, he seeks evaluation ("I think I'm
losing my mind"), which is atypical for schizophrenia where insight is typically absent.
The "hallucinations" described are likely obsessive rumination with
pseudo-hallucinations—he hears whispering about specific themes (failure, judgment)
consistent with OCD content, and the voices occur in a specific context (related to
academic performance). The preserved functioning (well-groomed, appropriate affect,
high cognitive scores) and the egodystonic nature of symptoms (distressing to the
patient) strongly support OCD with poor insight rather than a primary psychotic disorder.
Option A (Schizophrenia) is incorrect because there are no negative symptoms,
disorganized speech/behavior, or functional deterioration required for the diagnosis;
additionally, the patient maintains insight that something is wrong. Option B (Delusional
Disorder) is incorrect because the delusions, if present, appear bizarre (thought
monitoring via advanced technology), and more importantly, the patient has associated
hallucinations and help-seeking behavior inconsistent with Delusional Disorder. Option
C (Brief Psychotic Disorder) is incorrect because the three-month duration exceeds the
required "less than one month" criterion, and the presentation lacks the sudden onset
and emotional turmoil typical of brief psychotic episodes. The presence of obsessional
themes (contamination of mind by external judgment, need for certainty about safety)
and the intellectualized, ruminative quality of the beliefs point to OCD with poor insight
(specifier), where insight ranges from "good or fair insight" to "absent insight/delusional
beliefs" per DSM-5-TR.
,Q2: A 34-year-old woman presents with a six-month history of persistent sadness,
anhedonia, fatigue, and difficulty concentrating. She reports sleeping 10-12 hours
nightly yet waking exhausted, and has gained 15 pounds despite decreased appetite.
She denies suicidal ideation but states, "I feel like I'm walking through
molasses—everything takes enormous effort." Her thyroid function tests show TSH 8.5
mIU/L (elevated) with normal free T4. Which diagnostic reasoning principle is most
critical in this case?
A. Apply the "primary psychiatric disorder" rule and diagnose Major Depressive Disorder,
as mood symptoms are the presenting complaint
B. Rule out general medical conditions first; the atypical neurovegetative symptoms and
elevated TSH suggest hypothyroidism as the etiology requiring treatment before
psychiatric diagnosis [CORRECT]
C. Diagnose Persistent Depressive Disorder given the six-month duration and chronic
course
D. Diagnose Bipolar II Disorder depressed phase due to hypersomnia and weight gain as
atypical features
Correct Answer: B
Rationale: This case exemplifies the fundamental diagnostic principle of ruling out
general medical conditions (GMCs) and substance-induced etiologies before assigning
primary psychiatric diagnoses. The clinical presentation demonstrates classic
hypothyroid depression—atypical neurovegetative symptoms (hypersomnia rather than
insomnia, weight gain rather than loss, fatigue with leaden paralysis quality) combined
with objective laboratory evidence of subclinical hypothyroidism (elevated TSH with
normal T4, indicating compensated hypothyroidism).
, DSM-5-TR requires clinicians to distinguish between Mood Disorder Due to Another
Medical Condition and primary depressive disorders. The elevated TSH in context of
depressive symptoms strongly suggests the mood disturbance is secondary to
endocrine dysfunction. Critical reasoning: Hypothyroidism can produce any
neuropsychiatric symptom, including psychosis, dementia, or mood disorders;
treatment with levothyroxine often resolves psychiatric symptoms, confirming the
etiological relationship.
Option A violates the hierarchical diagnostic principle—medical etiologies must be
excluded or treated first. The "primary psychiatric disorder" approach risks missing
reversible causes. Option C is incorrect because Persistent Depressive Disorder
requires a two-year duration (one year for children/adolescents) and does not account
for the medical findings. Option D is incorrect because there is no history of hypomanic
or manic episodes; atypical features alone (hypersomnia, weight gain) are insufficient
for bipolar diagnosis and are actually more characteristic of atypical depression, which
in this case has a medical etiology. The PMHNP must treat the hypothyroidism first,
re-evaluate psychiatric symptoms after euthyroid state is achieved, and only then
determine if a primary mood disorder coexists.
Q3: A 19-year-old college freshman is brought to the emergency department by campus
security after being found wandering the dormitory halls at 3 AM, speaking incoherently
about "the algorithms controlling reality." He is agitated, disheveled, and appears
perplexed. Vital signs show HR 118, BP 152/94, temperature 38.2°C (100.8°F). Pupils
are dilated at 6 mm bilaterally with sluggish reaction to light. His roommate reports the
patient was studying "non-stop for three days" and consuming "energy drinks and some
pills he got online to focus." What is the most appropriate initial diagnostic framework?
REASONING MIDTERM EXAM 2026/2027 | Latest Study Guide
| Walden University | Pass Guaranteed - A+ Graded
Domain 1: Foundations of Psychopathology & Diagnostic Process (12 Questions)
Q1: A 24-year-old graduate student presents for evaluation stating, "I think I'm losing my
mind. For the past three months, I've been convinced my professors are monitoring my
thoughts through hidden devices in the classroom. I stopped attending classes because
I hear them whispering about my failures even when I'm alone in my apartment. My
roommate says he doesn't hear anything, but I know they're using advanced technology
to project voices into my room." The patient is well-groomed, makes appropriate eye
contact, and shows full affective range when discussing his family. He scores 28/30 on
the Montreal Cognitive Assessment. Urine toxicology is negative. What is the most
appropriate initial diagnostic consideration?
A. Schizophrenia, based on the presence of clear psychotic symptoms including
delusions and hallucinations
B. Delusional Disorder, persecutory type, given the non-bizarre delusions and preserved
functioning outside the delusional theme
C. Brief Psychotic Disorder, as the symptoms have lasted less than six months and may
resolve spontaneously
D. Obsessive-Compulsive Disorder with poor insight, as the patient shows overvalued
ideas about monitoring [CORRECT]
Correct Answer: D
,Rationale: This case requires careful differential diagnosis between primary psychotic
disorders and OCD with poor insight. Key diagnostic reasoning points: The patient
demonstrates overvalued ideas rather than fixed delusions—he uses words like "I think"
and "convinced" suggesting some doubt, and critically, he seeks evaluation ("I think I'm
losing my mind"), which is atypical for schizophrenia where insight is typically absent.
The "hallucinations" described are likely obsessive rumination with
pseudo-hallucinations—he hears whispering about specific themes (failure, judgment)
consistent with OCD content, and the voices occur in a specific context (related to
academic performance). The preserved functioning (well-groomed, appropriate affect,
high cognitive scores) and the egodystonic nature of symptoms (distressing to the
patient) strongly support OCD with poor insight rather than a primary psychotic disorder.
Option A (Schizophrenia) is incorrect because there are no negative symptoms,
disorganized speech/behavior, or functional deterioration required for the diagnosis;
additionally, the patient maintains insight that something is wrong. Option B (Delusional
Disorder) is incorrect because the delusions, if present, appear bizarre (thought
monitoring via advanced technology), and more importantly, the patient has associated
hallucinations and help-seeking behavior inconsistent with Delusional Disorder. Option
C (Brief Psychotic Disorder) is incorrect because the three-month duration exceeds the
required "less than one month" criterion, and the presentation lacks the sudden onset
and emotional turmoil typical of brief psychotic episodes. The presence of obsessional
themes (contamination of mind by external judgment, need for certainty about safety)
and the intellectualized, ruminative quality of the beliefs point to OCD with poor insight
(specifier), where insight ranges from "good or fair insight" to "absent insight/delusional
beliefs" per DSM-5-TR.
,Q2: A 34-year-old woman presents with a six-month history of persistent sadness,
anhedonia, fatigue, and difficulty concentrating. She reports sleeping 10-12 hours
nightly yet waking exhausted, and has gained 15 pounds despite decreased appetite.
She denies suicidal ideation but states, "I feel like I'm walking through
molasses—everything takes enormous effort." Her thyroid function tests show TSH 8.5
mIU/L (elevated) with normal free T4. Which diagnostic reasoning principle is most
critical in this case?
A. Apply the "primary psychiatric disorder" rule and diagnose Major Depressive Disorder,
as mood symptoms are the presenting complaint
B. Rule out general medical conditions first; the atypical neurovegetative symptoms and
elevated TSH suggest hypothyroidism as the etiology requiring treatment before
psychiatric diagnosis [CORRECT]
C. Diagnose Persistent Depressive Disorder given the six-month duration and chronic
course
D. Diagnose Bipolar II Disorder depressed phase due to hypersomnia and weight gain as
atypical features
Correct Answer: B
Rationale: This case exemplifies the fundamental diagnostic principle of ruling out
general medical conditions (GMCs) and substance-induced etiologies before assigning
primary psychiatric diagnoses. The clinical presentation demonstrates classic
hypothyroid depression—atypical neurovegetative symptoms (hypersomnia rather than
insomnia, weight gain rather than loss, fatigue with leaden paralysis quality) combined
with objective laboratory evidence of subclinical hypothyroidism (elevated TSH with
normal T4, indicating compensated hypothyroidism).
, DSM-5-TR requires clinicians to distinguish between Mood Disorder Due to Another
Medical Condition and primary depressive disorders. The elevated TSH in context of
depressive symptoms strongly suggests the mood disturbance is secondary to
endocrine dysfunction. Critical reasoning: Hypothyroidism can produce any
neuropsychiatric symptom, including psychosis, dementia, or mood disorders;
treatment with levothyroxine often resolves psychiatric symptoms, confirming the
etiological relationship.
Option A violates the hierarchical diagnostic principle—medical etiologies must be
excluded or treated first. The "primary psychiatric disorder" approach risks missing
reversible causes. Option C is incorrect because Persistent Depressive Disorder
requires a two-year duration (one year for children/adolescents) and does not account
for the medical findings. Option D is incorrect because there is no history of hypomanic
or manic episodes; atypical features alone (hypersomnia, weight gain) are insufficient
for bipolar diagnosis and are actually more characteristic of atypical depression, which
in this case has a medical etiology. The PMHNP must treat the hypothyroidism first,
re-evaluate psychiatric symptoms after euthyroid state is achieved, and only then
determine if a primary mood disorder coexists.
Q3: A 19-year-old college freshman is brought to the emergency department by campus
security after being found wandering the dormitory halls at 3 AM, speaking incoherently
about "the algorithms controlling reality." He is agitated, disheveled, and appears
perplexed. Vital signs show HR 118, BP 152/94, temperature 38.2°C (100.8°F). Pupils
are dilated at 6 mm bilaterally with sluggish reaction to light. His roommate reports the
patient was studying "non-stop for three days" and consuming "energy drinks and some
pills he got online to focus." What is the most appropriate initial diagnostic framework?
