NR548 MODULE 4: PMHNP PSYCHIATRIC
ASSESSMENT Q&A — 2027 EDITION
What proportion of young people experience mental
or behavioral disorders?
Approximately 20–25%, meaning about 1 in every 5
youths.
Why is early identification of mental disorders in
youth important, and who typically initiates it?
Detecting issues early enables timely intervention,
leading to improved outcomes.
Initial care is usually started through primary care
providers (PCPs) or school-based services.
,Key facts about brain development in youth
Brain development begins roughly 2 weeks after
conception.
By the age of 2 years, about 75% of the adult brain
has formed.
Full brain maturation continues through adolescence
into early adulthood.
Factors that can influence brain development
outcomes
Exposure to stress
Environmental toxins
Traumatic experiences during critical developmental
stages
,Conditions linked to maladaptive neuroplasticity
ADHD
Autism
Learning disorders
Schizophrenia
Six major gross motor developmental milestones
Sitting without support: 4–9 months
Standing with assistance: 5–12 months
Crawling on hands and knees: 5–14 months
Walking with assistance: 6–14 months
Standing independently: 7–17 months
Walking independently: 8–18 months
, Motor skill development in 2–3-year-olds
Gross Motor Skills
Jumping, hopping, throwing, and catching with a stiff
upper body
Moving riding toys using feet with limited steering
control
Fine Motor Skills
Dressing and undressing simple clothing
Using large zippers
Eating effectively with a spoon
ASSESSMENT Q&A — 2027 EDITION
What proportion of young people experience mental
or behavioral disorders?
Approximately 20–25%, meaning about 1 in every 5
youths.
Why is early identification of mental disorders in
youth important, and who typically initiates it?
Detecting issues early enables timely intervention,
leading to improved outcomes.
Initial care is usually started through primary care
providers (PCPs) or school-based services.
,Key facts about brain development in youth
Brain development begins roughly 2 weeks after
conception.
By the age of 2 years, about 75% of the adult brain
has formed.
Full brain maturation continues through adolescence
into early adulthood.
Factors that can influence brain development
outcomes
Exposure to stress
Environmental toxins
Traumatic experiences during critical developmental
stages
,Conditions linked to maladaptive neuroplasticity
ADHD
Autism
Learning disorders
Schizophrenia
Six major gross motor developmental milestones
Sitting without support: 4–9 months
Standing with assistance: 5–12 months
Crawling on hands and knees: 5–14 months
Walking with assistance: 6–14 months
Standing independently: 7–17 months
Walking independently: 8–18 months
, Motor skill development in 2–3-year-olds
Gross Motor Skills
Jumping, hopping, throwing, and catching with a stiff
upper body
Moving riding toys using feet with limited steering
control
Fine Motor Skills
Dressing and undressing simple clothing
Using large zippers
Eating effectively with a spoon
