Foetal circulation Flashcards
1
Q
blood is oxygenated where?
A
placenta - enters by the umbilical vein
2
Q
The umbilical vein enters what organ?
A
liver - inferior vena caves
3
Q
when the ductus venosus closes- what does it become
A
ligamentum rotunda of the liver
4
Q
what stunk do we have in utero?
A
right to left shunt
5
Q
Changes in the fetal circulation at birth (6)
A
lungs inflate - pul vas resistance falls
- pul blood flow increases
- systemic vascular resistance is increased
- ductus arteriosus closes
- Foramen oval closes
- ductus venosus closes
6
Q
shunt after delivery is?
A
left to right
7
Q
patent ductus arteriosus is very common in?
A
pre-term infants
8
Q
Treatment of patent ductus arteriosus?
A
- fluid restriction/ duretics
- prostaglandin inhibitors (IV ibuprofen)
- surgical ligation
9
Q
in term babies there Is a chance that ..
A
patent ductus arteriosus will close
- not prostaglandin sensitive
- reassessment at 1 year old
