Term Newborn Flashcards
Categories involved in the APGAR scoring system?
What are the scoring numbers?
Heart Rate Respiratory Effort Muscle Tone Reflex Irritability Color
Scoring goes from 0, 1, 2
APGAR Heart rate
0 - absent
1 - below 100
2 - above 100
APGAR Respiratory Effort
The effort - not the rate.
0- absent
1 - irregular
2 - good crying
APGAR Muscle tone
0 - flaccid
1 - some flexion
2 - active motion
APGAR Reflex irritability
What tool will they use?
0 - absent/none
1 - grimace
2 - vigorous crying
Use the bulb to cause a gag reflex
APGAR Color
0 - pale blue
1 - body pink w blue extremities
2 - completely pink
What is the Max APGAR score?
How long can APGAR scores be carried out?
10
10 minutes
- most babies will be 8 or 10
- might see a 10 baby if natural birth
Who is really the only person who can’t assign an apgar score?
OB
Suctioning used to clear the mouth and nose after birth?
What else does this do?
DeeLee Suctioning
Can measure gastric secretions too which can warn you about a GI obstruction
- 5 to 10 is average
What do periods of reactivity describe?
How the baby is doing outside the utero cavity
When does the First Period of reactivity occur?
First period happens 30 minutes after delivery
First period of reactivity newborn behavior
Awake, active, and hungry using the suck reflex. Will try to start breastfeeding due to Oxytocin - which is helped bu skin to skin that happens here too.
First period of reactivity newborn vitals
HR 160-180
Irregular Respirations 60 - 80
Due to them being a little stressed and trying to clear fluid from their lungs
First period of reactivity assessment findings
Grunting
Retractions
Nasal flaring
Crackles
Also do due to trying to clear lungs.
- They should stabilize
What phase comes after the first period of reactivity? How long is it?
Sleep phase where things can stabilize 1-2 hours
Second period of reactivity comes after? How long is that?
Second period of reactivity comes after the sleep phase.
2-8 hours
What is the second period of reactivity known as?
Known as Stormy phase
- gagging
- vomit
- may not do well at breastfeeding bc now, they’re trying to get rid of fluid.
- just need to be able to suction and clear it out with bulb syringe at head of bed
When do the alveolar ducts appear?
When do the primitive alveoli ducts appear?
20-24 weeks gestation
More apparent ducts form 24-28 weeks gestation.
When does the surfactant develop?
By 28-32 weeks
And this is why babies who are 35+ do fairly well bc at 35 they can replace it
What does surfactant do?
Lowers surface tension & helps alveoli open
What if the infant doesn’t have decent surfactant?
We have exogenous surfactant that we can give them
Fetal breathing movements help the fetas practice for breathing. What is essential for this to occur?
Amniotic fluid and lung fluid
Without it, you have hypo-plastic lungs and babies die.
Mechanical changes that baby adapt to breathing and remove the 80-110 mL still in their lungs?
Chest compression & chest squeezing during exiting vagina
Gasp & forced exhalation
Crying
Suctioning
Chemical changes that explain mild decels right before delivery?
Increased CO2
Decreased pH
Decreased O2
Helps them take first breath.
We don’t want them to be overly stressed tho with decels
What action by us cuts off all oxygen from mom to baby?
Cord clamping and from here, they need to breath on their own.
What are some thermal changes that occur?
What if they get too cool or hypothermic?
The baby in utero is warm but outside it is cold. This change stimulates nerves to drive breathing
If hypothermic, causes respiratory depression. We will get them under a warmer to avoid this.
Sensory changes that help breathing when born?
Baby experiences gravity, touch, voices, lights - all very stimulus like
It increases the baby’s drive to breath
What is the Silverman Anderson index tool?
Helps you decide how a baby is doing after birth respiratory wise
Grade 2 of Silverman Anderson index
2 - Retractions and lagging on inspiration. The xiphoid will be depressed. The nares flare open so they can get more air. Can hear their expirations with you naked ear
Grade 1 of Silverman Anderson index
1 - Slight lag with less retractions, less depression of xiphoid, and minimal flaring.
Will hear expirations with stethoscope
Grade 0 of Silverman Anderson index
0 - Abdomen and chest rise and fall together. No retractions. No xiphoid issue. No nasal flaring. No grunting heard
Perfectly normal
What if a baby is a grade 2 or 3 on the Silverman index?
What else can you consider?
As long as they move up on scale within hour or so , then they are ok. If it doesn’t improve - send to nicu.
Respiratory rate & O2 sats
What type of breathers are babies?
What age are babies able to mouth breath incase of an obstructtion?
Nose breathers with abdominal muscles- and if there is an obstruction they can’t eat either.
3 weeks of age is when they can mouth breathe
How should the abdomen and chest rise and fall?
They should rise and fall together
What is the cause of less surfactant?
Preterm delivery babies who are born early may have less. This can be an issue in breathing
Persisting hypoxemia and acidosis leads to….
Pulmonary arteries will be dilated at first but then go to constricted which isn’t good
Indicators of respiratory diseress
Tachypnea comes first (greater than 60 in infants)
Apnea and cyanosis
Flaring nostrils
Hypotonia - poor muscle posture
Grunting
Retractions
Seesaw respirations
Hypotonia
poor muscle tone and posture
PFC meaning
Persistant Fetal Circulation
- due to pulmonary vessel constriction
- and the ductus and foramen ovale aren’t closing
This is not good. PDA = patent ductus
- you want these to close eventually
Will hear rushing sound
What is infant hemoglobin and hematocrit like?
What about hr?
What happens to fetal hemoglobin after delivery?
Higher attraction to O2 to keep them from becoming hypoxic
Heart rate is higher to prevent hypoxia as well
Fetal H&H is replaced with adult H&H bc they won’t need it anymore
Normal breathing rate for infant
What will the rhythm be like?
Why do you need to count for 1 full minute?
30-60 breathes per minute
Shallow diaphragmatic breathing
Irregular in depth and rhythm
Due to irregularity in breathing bc they do it periodically. Breath pause breath for like 5-15 seconds. No change in color or HR
How long is pause in breathing if they have apnea ?
More than 20 seconds
Bradycardia & pale
Hemoglobin level
Hematocrit
14-20
43-63%
- polycythemia if it is higher than 63. means thick blood. Not a good thing bc it increases workload of heart
- acrocyanosis will be prolonged
wbc
10,000 - 30,000
platelets
150,000 - 350,000
- same as adults
Lab that can tell you if baby was hypoxic in utero?
Reticulocytes : 3 - 7 %
- immature red blood cell. if theirs is high, it means they had hypoxic episodes of utero
Blood vol
82 - 83 ml/kg
- you can calculate this
Glucose levels
45-94 in infant
- if lower than 45 they are hypoglycemic
What should resting HR in infants be?
What is the low while sleeping
120-160 bmp
80 bpm is low
How long do you listen for murmurs.
What is the trend with audible murmurs and heart defects?
What else should you check?
Full minute
The serious heart defects aren’t heard as well due to their hole being so big, it doesn’t make a noise. Small hole has more resistant and makes it louder
Do o2 sat on the baby around 24 hrs of age - but definitely before dismissal.
right arm right leg
What should the femoral and brachial pulses be like?
What does cap refill be like?
Will you do a newborns BP?
Check femoral and brachial pulses need to be equal without lag.
Less than 2-3 seconds
No not if they’re not in nicu. We focus on O2 sats.
Abnormal Cardiac findings list
Tachycardia Persistent murmur Abnormal pulses Poor perfusion via cyanosis Abnormal precordial activity
Circumoral cyanosis
Cyanosis around mouth
Abnormal precordial activity
Feeling a thrill - that is not good
What are murmurs due to?
What percent are transient or short term?
Turbulent blood flow due to turbulent blood flow from hole
90% so murmurs in first couple days of life aren’t a huge deal unless they don’t go away
Who turns over their rbc quicker? Adults or newborns?
Newborns at 70-90 versus
Adults at 120
What is the jaundice in newborns caused from?
Sort of like we mentioned already.. the rbc of newborns has higher turn over. And thus they get broken down causing the hyperbilirubin color