OB test 1 Flashcards
3 periods occur when baby is born
- 1st period of activity- couple hours after birth- baby is awake, bond with baby, feed, skin to skn
- 2nd period- rest- baby sleeps for about two hours
- 3rd period of activity- awake and bonding
Newborns senses are tested before sent home
KNOW: hearing test on every baby before they go home*
What is formed in the lungs when the fetus is developing and what is its function?
The fetus produces surfactant at 24-25 weeks- this keeps alveoli open.
This is why premature babies born at this time have a chance of survival
-Babies do breath inutero but no gas exchange-
Vessels in the umbilical cord
There are 3: 2 arteries, 1 vein
Oxygen comes from the vein.
AVA
Ductus Venosus
bypasses the LIVER to get to the heart faster
Ductus Arteriosus
bypasses the LUNGS
Foramen Ovale
-shunts blood from RIGHT to LEFT atrium
Types of heat loss
Conduction- prevented by holding, touching
Convection- (air) protect from drafts of air
Radiation- sunlight
Evaporation- dry the baby off
**PRETERM BABIES HAVE A HARD TIME STAYING WARM
Heat loss in a newborn can cause 3 things. What are they?
- Respiratory distress
- Hypoglycemia
- increases oxygen demand
What is brown fat?
-area of skin that has lots of blood vessels, help keep baby warm because babies are unable to shiver. (found in back of neck)
Normal Respiration Rates for Newborn
-30-60 bpm
*periods of APNEA less than 20 seconds is NORMAL!
-See-saw resps are abnormal
Normal Temp for newborn
-97.7-99.1
Anything less than 97.7, you need to intervene.
NO rectal temps, temps are taken axillary
low temp coud be a sign of infection
S/S of respiratory distress
- nasal flaring, GRUNTS, tachypnea, retractions
- Ambu bag should be in every delivery room
What vitamin is given at birth and why?
Vitamin K is given at birth because the gut is sterile, cannot synthesize vitamin K which is needed for clotting.
First feeding
-start with 15mL and increase with next feeding
Babies first stool
*MECONIUM- black and tarry within 12-24 hours
3 causes of bowel movements that occur inside.
- post due dates
- fetal distress
- Breech positioning
When is jaundice normal? When is it not normal?
Jaundice within the first 24 hours is ABNORMAL (pathological)
Jaundice after 24 hours is normal (physiological)
Normal Blood Glucose in a Newborn
40-60mg for the first day
(Babies with diabetic mom are prone to hypoglycemia)
What are the different types of immunty and how does the baby get them?
IGG- diseae is gone- baby gets immunity from mother/placenta.
IGM- disease process is going on. Baby must have infection to get immunity.
IGA- passed only to breast fed babies
What is the Moro Reflex?
Startle reflex- make loud noise and baby becomes startled. (clap hands, raise arms and drop)
Babies hands will be in a C position
Babinski reflex
run finger upwards on sole of foot, toes expand and big toe dorsiflex.
(this is healthy for babies, not for adults)
How to tell the difference between seizure and hypoglycemia?
If baby shakes, hold them close to you. If they stop it is hypoglycemia, if they dont its a seizure
Normal heart rate in newborn
120-160 for newborn- apical for one min
110-160 for fetal heartbeat