Week 2 Flashcards
When is the new born period?
Birth to 28 days
How long does the first period of reactivity last
Up to 30 mins after birth
What are the 3 phases of transition to extrauterine life?
- First period
- Period decreased responsiveness
- Second period of reactivity
What happens to RR AND HR during the first period of reactivity
HR AND RR may increase
may hear crackles, grunting etc but will cease within the first hour of birth
How is the newborn digestive in the first period of reactivity?
Bowel sounds are present
Might pass meconium
What happens period of decreased responsiveness?
Newborn sleeps
may have decrease in motor activity
Infant is pink
Respirations may be rapid and shallow
When does the second period of reactivity occur?
2-8 hours after birth
Lasts 10 mins to several hours
What happens in the second period of reactivity?
Tachycardia and tachypnea
Meconium is commonly passed
Increased muscle tone, changes in skin colour, and mucus production
How does oxygenation of the fetus occurs?
through trans placental gas exchange
What happens when the cord is clamped?
Causes a rise in blood pressure which increases circulation and lung perfusion
What initiates breathing in a new born
combination of factors such as:
1. Chemical
2. Mechanical
3. Temperature
4. Sensory
How does breathing get initiated chemically
Decreased levels of oxygen and increased levels of carbon dioxide may stimulate the respiratory centre in the medulla
How does breathing get initiated mechanically
Crying increases the distribution of air in the lungs and promotes expansion of alveoli
How does breathing get initiated by temperature?
Usually lower I’m extrauterine life and stimulates receptors in the skin. Stimulating the respiratory centre
How does breathing get initiated by sensory
touch, light, sounds, and smell cans stimulate respiratory centre
What are signs of respiratory distress
nasal flaring, retractions, grunting and RR under 30 or over 60
What should nurse assess when newborn has apnea episodes?
Temperature because it could be hypothermia, hypoglycaemia, or sepsis
What is the normal HR for newborns
120 to 160 bpm
What are red flags for cardiac issues?
Hearing heart murmurs and cyanosis
What are Red blood cells, hemoglobin and leukocytes like in newborn babies
Higher than adults but then return to normal a bit later
Will the baby’s white blood cell count go higher if they have sepsis
It can but not always
What is the platelet count like for newborns
Same as adults
Why do babies need a vitamin k injection?
Because they cannot synthesize vitamin k initially
How do we see a newborns rh and blood type?
Take cord blood for testing
How is thermogenesis done?
By using brown fat and increasing metabolic activity
How can newborns lose brown fat or heat loss?
- Convection from body to cooler air (room at 24 degrees)
- Radiation from body to cooler surfaces (cot away from window)
- Evaporation liquid is converted to vapor (dry infant well and fast)
- Conduction loss from body to cooler surfaces (skin to skin)
How do we keep the baby warm
Keep room at 24 degrees
Check baby’s temperature before initial bath (usually 36.9 axilla)
How much urine does the newborn bladder compose of?
up to 40 mils
How often should a newborn void?
at least 1 void in 24 hours
day 2 - 2 voids
day 3 - 3 voids
day 4 - 4 to 6 voids
day 5 - 5 to 8 voids
Is bacteria present in newborns?
not at first but gets introduced later
What is a newborns stomach capacity?
Only 30 to 90 mils
When are bowel movements expected?
day 1 to 3
Should be black or dark green (meconium)
How does the stool change throughout the days of a newborn?
Day 3-4: starts changing to light green to brown, 3 times a day
Day 5-7: More than 3 times a day and changes to a yellow colour
How is the storage for iron in a newborn?
Lots of storage of iron from utero that lasts up to 4-6 weeks after birth
Hemoglobin stores iron
How long does the stored glycogen last in a newborn?
Gets depleted quickly due to increased energy needs making it very important for the baby to feed
How soon should feeding be initiated?
first 30 minutes of life