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Concepts Of Maternal-Child Nursing (4130) Professor Lewis- Pediatric Exam 1 Notes

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Nova Southeastern University

Concepts Of Maternal-Child Nursing And Families (NUR 4130)

Ch. 25 Growth & Development of the Newborn & Infant
Principles of Development
 Continuous process through life
 Orderly sequence
 Predictable but unique ranges
 Systems mature at different rates
 More rapid in early periods
 Cephalocaudal pattern  grow longer, head to tail
 Gross to refined skills
 Newborn/neonatal period of infancy  from birth to 28 days
 Infancy  28 days to 12 months
Growth & Development
 Nurse must be familiar w/normal development  while obtaining health hx, nurse can ask
parent/caregiver if the skill is present and when it was attained
 Ill or premature infants may exhibit delayed acquisition of physical growth and dev skills 
when assessing the growth and dev, use the infants adjusted age to determine expected
outcomes
 Adjusted age  subtract the # of weeks that the infant was premature from the infant’s
chronological age
Physical Growth
 Ongoing assessments of growth are important so too rapid or inadequate growth can be
identified
 Infants grow rapidly over the first 12 months  weight, length, head and chest
circumference are all indicators of growth
 Weight
o The avg newborn weighs 3.4 kg (7.5lb) at birth
o Newborns lose up to 10% of their body weight over the 1st week of life  then gain
30g/day and regains birth weight by 10-14 days of age
o Most infants double their birth weight by 4 months and triple by the time they are 1
y/o
 Height
o Avg newborn is 50cm (20in) long
o Length grows more quickly over the 1st 6 months
o By 12 months  length increased by 50%
 Head Circumference
o Avg head circumference of full term newborn  35cm (14in)
o Increases rapidly during 1st 6 months
o Avg of 10 cm (4in) gain from birth to 1 y/o
 Fontanel closure  posterior 6-8 weeks (2 months), anterior at 9-18 months  open for
brain to grow pg. 1179
 Teeth
o Occasionally and infant is born w/1 or more teeth  natal teeth  or dev them in
1st 28 days  neonatal teeth

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Concepts Of Maternal-Child Nursing (4130) Professor Lewis- Pediatric Exam 1 Notes

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