Week 4 Midterm Exam: NR547 / NR-547 (Latest
) Differential Diagnosis in Psychiatric-
Mental Health across the Lifespan Practicum
Review Questions and Verified Answers | 100%
Correct | Grade A – Chamberlain
1. A 7-year-old child is brought to the clinic by his parents because he has been disruptive
in school, frequently interrupts others, cannot wait his turn, and has difficulty staying
seated. These behaviors have been present since age 4 and occur in multiple settings. The
most likely diagnosis is Answer: Attention-Deficit/Hyperactivity Disorder, Combined
PresentationRationale: The child meets DSM-5-TR criteria for ADHD Combined
Presentation: ≥6 symptoms of inattention and ≥6 symptoms of hyperactivity-impulsivity
for ≥6 months, onset before age 12, present in ≥2 settings, and causing impairment.
2. A 16-year-old adolescent female presents with depressed mood, anhedonia, sleep
disturbance, poor concentration, feelings of worthlessness, and suicidal ideation for the
past 5 months. She has no history of mania. The most likely diagnosis is Answer: Major
Depressive DisorderRationale: Meets DSM-5-TR criteria for MDD: ≥5 symptoms
including depressed mood or anhedonia for ≥2 weeks, causing significant impairment,
and no history of manic/hypomanic episodes.
3. A 28-year-old male reports episodes of elevated mood, grandiosity, decreased need for
sleep (3 hours/night), racing thoughts, and excessive spending for 7 days, followed by a
crash into depression. The most likely diagnosis is Answer: Bipolar I
DisorderRationale: DSM-5-TR criteria for Bipolar I require at least one manic episode
(≥7 days or requiring hospitalization) with elevated mood and ≥3 other manic symptoms.
Depressive episodes are common but not required for diagnosis.
4. A 9-year-old boy has had multiple motor tics (eye blinking, shoulder shrugging) and
vocal tics (throat clearing, grunting) for over a year. The tics wax and wane. The most
likely diagnosis is Answer: Tourette DisorderRationale: DSM-5-TR criteria for
Tourette Disorder require both multiple motor and at least one vocal tic, present for >1
year, onset before age 18, and not attributable to substances or another medical condition.
) Differential Diagnosis in Psychiatric-
Mental Health across the Lifespan Practicum
Review Questions and Verified Answers | 100%
Correct | Grade A – Chamberlain
1. A 7-year-old child is brought to the clinic by his parents because he has been disruptive
in school, frequently interrupts others, cannot wait his turn, and has difficulty staying
seated. These behaviors have been present since age 4 and occur in multiple settings. The
most likely diagnosis is Answer: Attention-Deficit/Hyperactivity Disorder, Combined
PresentationRationale: The child meets DSM-5-TR criteria for ADHD Combined
Presentation: ≥6 symptoms of inattention and ≥6 symptoms of hyperactivity-impulsivity
for ≥6 months, onset before age 12, present in ≥2 settings, and causing impairment.
2. A 16-year-old adolescent female presents with depressed mood, anhedonia, sleep
disturbance, poor concentration, feelings of worthlessness, and suicidal ideation for the
past 5 months. She has no history of mania. The most likely diagnosis is Answer: Major
Depressive DisorderRationale: Meets DSM-5-TR criteria for MDD: ≥5 symptoms
including depressed mood or anhedonia for ≥2 weeks, causing significant impairment,
and no history of manic/hypomanic episodes.
3. A 28-year-old male reports episodes of elevated mood, grandiosity, decreased need for
sleep (3 hours/night), racing thoughts, and excessive spending for 7 days, followed by a
crash into depression. The most likely diagnosis is Answer: Bipolar I
DisorderRationale: DSM-5-TR criteria for Bipolar I require at least one manic episode
(≥7 days or requiring hospitalization) with elevated mood and ≥3 other manic symptoms.
Depressive episodes are common but not required for diagnosis.
4. A 9-year-old boy has had multiple motor tics (eye blinking, shoulder shrugging) and
vocal tics (throat clearing, grunting) for over a year. The tics wax and wane. The most
likely diagnosis is Answer: Tourette DisorderRationale: DSM-5-TR criteria for
Tourette Disorder require both multiple motor and at least one vocal tic, present for >1
year, onset before age 18, and not attributable to substances or another medical condition.
