Normal Newborn Flashcards
how the baby breathes in utero
oxygenation is across placental membrane
lungs are filled with fluid and blood vessels are constricted
length of infant transition period from inside to out
8 hours
initial breathing is stimulated by reflex of…
physical, sensory, and chemical factors
what occurs to respiratory system once cord is cut?
decreased arterial o2
increased co2 pressure
decreased ph
benefits of first cry
grabs air and clears lungs
physical stimuli at birth
heat loss from wet body/cold air
release from fluid environment/gravitational forces
release of resistance from vaginal walls
APGAR scoring
activity pulse grimace appearance respiration at birth, 1 minute and 5 mins
acrocyanosis
circulatory (not resp) issue.. infants hands and feet are blue
normal respiration rate and pattern
norm- 30-60 /min
tachy- >60/min
shallow, quiet, irregular, nose breather, chest and abdomen rise with inspiration
how the heart adapts
closure of foremen ovale (atrium) from pressure in left atrium
ductus arteriosum closes
dectus venosus doesn’t transport blood
normal cardiac rate and rhythm
120-160 bpm
irregular
take apical for 1 minute
GI adaptation
sucking reflex
enzymes for digestion of fat, CHO, proteins
immature sphincter between esophagus and stomach
tracheosophageal fistula
hole/channel between esophagus and tracheal
meconium
thick, sticky, dark green/black transitional stool
renal system adaptations
urine is present in bladder at birth, void within 24 hours
6-8 wet diapers a day
limited ability to excrete drugs
hepatic system adaptation
production of hgb
production of products for blood coagulation
depend on iron for 3months from pregnancy
need iron intake after 4 months
liver changes at birth
extra bilirubin that liver needs to break down
immune system
risk for infection
breast fed will increase passive immunity for up to 3 months
integumentary system
skin is red and beefy at birth vernix helps maintain heat lanugo desquamation- peeling/scaling Mongolian spots milia Epstein pearls nevi
Epstein pearls
papules on tongue/pallet
nevi
birthmarks
Changes with birth- female reproductive
Labia is swollen and covers the clitoris
Changes with birth - male
Urinary meatus is at the tip of the penis, testes are descended, scrotum is large
Changes with birth - musculoskeletal system
Flexed position, symmetrical movements, head is largest part, cranium is molding, Fontanels open