DEVELOPMENT NCLEX REVIEW COMPLETE
STUDY GUIDE 2026 | PRACTICE
QUESTIONS, RATIONALES & CHEAT SHEET
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Updated 2026 Questions and Answers
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Rationales Included
,By how much does an infant's length 50%
increase by 12 months?
When does the anterior fontanel At 18 months
close?
What significant physiological Myelinization takes up to 2 years
change occurs in the CNS during
infancy?
What is the heart rate of a newborn 120-140 bpm at birth, ~100 bpm at 1 year
compared to a 1-year-old?
What is the primary psychosocial Trust vs. Mistrust
crisis during infancy according to
Erikson?
What stage of cognitive Sensorimotor Stage (birth-2 yrs)
development does Piaget associate
with infants?
What is the first gross motor skill Lifting the head at 2 months
typically developed by an infant?
What is the recommended nutrition Breast milk or formula only
for infants during the first 6 months?
, At what age should solid foods be Around 6 months
introduced to an infant?
What is the typical sleep requirement 16-20 hours per day
for newborns?
What is the recommended car seat Rear-facing car seat until at least age 2 or
safety for infants? maximum height/weight for the seat
What is the first dental visit By age 1
recommendation for infants?
What is the average weight gain for 3-5 lb/year
toddlers per year?
What is the average height increase Approximately 3 inches/year
for toddlers per year?
What psychosocial crisis do toddlers Autonomy vs. Shame & Doubt
face according to Erikson?
What cognitive development stage From Sensorimotor to Preoperational
do toddlers transition into according
to Piaget?