Week 5 Flashcards
(50 cards)
What does the ductus arteriosus do?
Connects the pulmonary artery and the desending aorta
what physiological changes does baby go through in order to prepare for birth during the 3rd trimester?
Surfactant production
Glycogen build up
Brown fat build up
Subcutaneous fat build up
Swallowing amniotic fluid
Where do you find brown fat in babies?
Between scapulae and around internal organs
How do babies thermo regulate?
Non shivering thermogenesis
How does non shivering thermogenesis work?
Heat produced by breakdown of stored brown adipose tissue in response to catecholamines
Why do babies get jaundice?
Breakdown of fetal haemoglobin
Conjugating pathways are immature
rise in unconjugated bilirubin
What is the normal weight for a new born baby?
2.5kg to 4.0kg
What is a normal Apgar score?
> 8
What are the components of an Apgar score?
Heart rate
Resp rate
responsiveness
Tone
Colour
What is on the apgar table ?

What is a normal respiratory rate found in a newborn clinical assessment?
40-60 per minute
What is a normal heart rate in a newborn clinical assesment ?
120-140
What is a normal cap refill in a newborn baby?
2-3 seconds
What defines preterm?
birth before 37 completed weeks
What is term?
Birth between 37 and 42 weeks
What is the difference between early and late onset neonatal sepsis?
Early- bacteria acquired before and during delivery
Late- bacteria acquired after delivery
What causes neonatal respiratory distress syndrome>
Surfactant deficiency
Structural immaturity
Who gets respiratory distress syndrome and how common is it?
75% of infants born before 29 weeks
10% born after 32 weeks
How do you mannage respiratory distress syndrome?
Maternal steroid
Surfactant
Ventilation
What is intraventricular heamorrhage?
From of intracranial haemorrhage that occours in preterm infants which begins bleeding into the germinal matrix
What are the likely outcomes of intraventricular haemorrhages?
grade 1 and 2: Neurodevelopmental delay 20% , mortality 10%
Grade 3 and 4: Neurodevelopmental delay 80%, mortality 50%
What medication should all mothers take if they are trying to conceive and why should they take it?
Folic acid 400mg for 3 months prior and 3 months post conception
To prevent neural tube defects
When is the period of greatest teratogenic risk?
between weeks 4 and 11
What super common blood pressure drug is tertogenic?
ACE inhibitors