Diagnostic Reasoning Comprehensive
Midterm Exam Practice 250 Questions
with Answers & Detailed Rationales
Instructions
This practice exam is designed to prepare candidates for the
NRNP 6635 Psychopathology & Diagnostic Reasoning midterm
exam at Walden University. The course focuses on advanced
psychopathology concepts, DSM-5-TR diagnostic criteria, clinical
interviewing, mental status examination (MSE), differential
diagnosis, and diagnostic reasoning across the lifespan.
Topics Covered:
• Module 1: Foundations of Psychopathology & Diagnostic
Reasoning (Q1–30)
• Module 2: Neurodevelopmental & Childhood Disorders (Q31–60)
• Module 3: Schizophrenia Spectrum & Other Psychotic Disorders
(Q61–90)
• Module 4: Bipolar & Related Disorders (Q91–115)
• Module 5: Depressive Disorders (Q116–140)
• Module 6: Anxiety, Obsessive-Compulsive & Trauma-Related
Disorders (Q141–175)
• Module 7: Somatic, Dissociative & Eating Disorders (Q176–195)
• Module 8: Personality Disorders (Q196–215)
• Module 9: Substance-Related & Addictive Disorders (Q216–235)
• Module 10: Ethical, Cultural & Legal Considerations (Q236–250)
,Module 1: Foundations of Psychopathology & Diagnostic
Reasoning
Q1. A 45-year-old patient presents with a 6-month history of
low mood, anhedonia, and fatigue. Symptoms began after a
stressful job loss. Which component of the mental status
exam is most directly assessed by noting the patient's
slumped posture and lack of eye contact?
A. Thought content
B. Psychomotor behavior
C. Insight
D. Sensorium
Answer: B
Rationale: Psychomotor behavior encompasses observable
physical manifestations including posture, eye contact, facial
expression, and motor activity. Slumped posture and poor eye
contact are objective observations that reflect psychomotor
retardation commonly seen in depressive disorders. Thought
content refers to what the patient is thinking. Insight involves
awareness of illness.
Q2. Which neurotransmitter system is primarily implicated
in the pathophysiology of major depressive disorder?
A. Dopamine only
B. Serotonin, norepinephrine, and dopamine
C. Acetylcholine
D. GABA
Answer: B
Rationale: The monoamine hypothesis of depression posits that
,deficiencies in serotonin, norepinephrine, and dopamine
contribute to depressive symptoms. This is supported by the
mechanism of action of antidepressant medications that target
these neurotransmitter systems.
Q3. What is the primary purpose of the Mental Status
Examination (MSE)?
A. To diagnose specific psychiatric disorders
B. To provide a structured assessment of a patient's current
cognitive, emotional, and behavioral functioning
C. To determine the patient's IQ
D. To assess for medical conditions
Answer: B
Rationale: The MSE provides a systematic, structured
assessment of a patient's current mental state, including
appearance, behavior, speech, mood, affect, thought process,
thought content, cognition, insight, and judgment. It is a crucial
component of psychiatric assessment but is not used alone for
diagnosis.
Q4. A patient describes his mood as "down" but laughs
appropriately during the interview. This discrepancy is best
described as:
A. Labile affect
B. Incongruent affect
C. Flat affect
D. Blunted affect
, Answer: B
Rationale: Incongruent affect occurs when the patient's
emotional expression (affect) does not match the reported mood
or situation. In this case, the patient reports feeling "down" but
displays appropriate laughter, creating a mismatch.
Q5. What is the difference between a delusion and an
overvalued idea?
A. Delusions are fixed, false beliefs not shared by the culture;
overvalued ideas are strongly held but not fixed
B. Overvalued ideas are fixed, false beliefs; delusions are strongly
held but not fixed
C. Both are the same
D. Delusions are always bizarre
Answer: A
Rationale: Delusions are fixed, false beliefs that are not amenable
to change in light of conflicting evidence and are not shared by the
patient's cultural or religious group. Overvalued ideas are
strongly held beliefs that may be understandable but are pursued
beyond reasonable bounds; they are not as firmly fixed as
delusions.
Q6. Which ethical principle is most relevant when a
psychiatric nurse practitioner prescribes a medication with
known side effects that may impair a patient's driving ability,
without discussing it?
A. Beneficence