Growth and Development Flashcards
Growth
Increase in physical size, linear and weight, neurological
Development
Increase in capacity or function
UNIQUE
- Variations in age
- Influences on development
- Rate of growth varies
- Growth is cephocaudal and proximodistal
Cephacaudal growth
Gradual change in head size compared to body size during human growth
Body Mass Index for Age
- Assess underweight, overweight, and at risk for overweight
- Used for ages 2 to 20 years of age
- Is gender and age specific
- BMI decreases during preschool years and increases to adulthood
Calculating BMI
( weight in lbs ) \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ x703 (height in in.) x (height in in.) or (weight in kg) \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_ x10,000 (height in cm) x (height in cm)
Underweight
Less than the 5th percentile
Healthy Weight
5th percentile to less than the 85th percentile
Overweight
85th to less than 95th percentile
Obese
Equal to or greater than the 95th percentile
Why is BMI for age a useful tool?
- It provides a reference that can be useful beyond puberty
- It compares well to lab measurements of body fat
- It can be used to track body size throughout life
Infancy: Newborn
Birth to 1 month
Infancy: Growth (weight, length)
Weight = 2700-4000 g (6-9lbs) gains about 5-7 oz/week for 6 months
Length = 48-53cm (19-21 in.) increases 2.5cm/mth. first 6 months
Infancy: Growth (head and chest circumference)
Head circumference = 33-35cm increases 2 cm/month first 3 months, than 1 cm/month until 6 months of age
Chest circumference = 2-3cm less than head circumference
Infancy: gross motor
may lift head if prone
Infancy: fine motor
hold hands in fist
Infancy: sensory
prefers faces, follows line of vision
Fontaneles
Anterior fontanelle
Posterior fontanelle
Babinski Reflex
Toes splay and curl out = POSITIVE babinski
Disappears after 18 months
Moro Reflex
Extension and abduction of extremities when change in equilibrium; disappears 3-4 months
Tonic Neck Reflex
Help roll over and disappears around the time they start to roll from back to belly
Dance reflex
stepping reflex; disappears around 4-8 weeks
Crawling reflex
if put on belly, will move arms and legs
Disappear at about 6 weeks of age
Nutrition (Bottle and breastfeeding)
Bottle 60-90cc every 2-3 hours
Breastfeeding every 2-3 hours on demand
Infant 2-4 MONTHS = growth
Same as infant, posterior fontanelles close
Infant 2-4 MONTHS = gross motor
decrease head lag, sitting
Infant 2-4 MONTHS = fine motor
holds rattle, plays with fingers, object to mouth
Infant 2-4 MONTHS = Sensory
turns head to voices
Infant 2-4 MONTHS = nutrition
every 3-4 hours
Infant 2-4 MONTHS = Language
“coo”, girgle or laugh
Infant 4-6 Months = growth
doubles in birth weight