Infant Development Flashcards
What percentage of initial weight is lost 3-4 days
10%
When should the weight loss experienced 3-4 days after birth return to baseline
2 weeks
When does the posterior fontanelle close
6-8 weeks
When does the anterior fontanelle close
12-18 months
Why is it needed to have the anterior fontanelle open
To acommodate brain growth
How does an infants weight change in the first 6 months of life
increase about 1 ounce per day
what is the respiration rate for a newborn
30-60 / minute
what is the respiration rate for a 1 year old
20-30 / minute
what is the heart rate for a newborn
120-160 bpm
what is the heart rate for a 1 year old
100-120
why does blood pressure change as the infant ages
systolic BP rises because the left ventricle gets stronger and becomes a better pump
what is the BP for a newborn
80/40
what is the BP for a 1 year old
100/60
when does maternal iron stores get depleted
5-6 months
when do amylase and lipase begin functioning
4-6 months
when does the rooting reflex disappear
3-4M
when does the asymmetric neck tone reflex disappear
4-6M
when does the palmer grasp reflex disappear
3-6M
when does the stepping reflex disappear
6-8Wk
when does the moro (aka startle) reflex disappear
4M
when can infants find their hands, follow objects past the midline, recognize familiar objects, and can follow parents
4M
when does an infant develop object permanence
10M
when can infants transfer objects between both hands
7M
when can infants pick their heads up and look at things
2M
how far can newborns - 1 month see
8-10 inches
when do infants develop depth perception
6M
when do infants develop directed reach
6M
when do infants localize sound and begin to understand a few words
3-6M
when would an infant say their first meaningful word
6-12M
when would an infant hear and follow simple commands
12M
when does the first deciduous tooth erupt
5-6M
an infant would have head lag at what age
1M
when can an infant support themselves on their elbows and raise their head up
3M
what does no head lag look like
head is able to stay in line with the spine when the baby is raised up
when can an infant support itself with arms (not only the elbows)
about 4M