fetus to baby physiological changes

Question 1

what is oxygen level in utero

Answer 1

relatively hypoxic

Question 2

what is in lungs in utero

Answer 2

amniotic fluid

Question 3

what promotes surfactant production

Answer 3

thyroid hormones/glucocorticoids

Question 4

which chanell upregulates to get rid of water in newborn lungs

Answer 4

ENAC sodium chnannel

Question 5

why babies born by CS more fluid in lungs

Answer 5

not squeezed on the way out

Question 6

H

Answer 6

G

Question 7

difference between type 1 and type 2 pneumocytes

Answer 7

type 1 long and lining, type 2 more cuboidal

Question 8

what is atelectasis

Answer 8

lung collapse

Question 9

what do you give to premature labour mother

Answer 9

corticosteroids

Question 10

fetal hb oxygen affinity

Answer 10

VERY HIGH

Question 11

ductus arteriosus, ductus venosus, foramen ovale close when?

Answer 11

1st 24h post birth

Question 12

wher edoes blood flow in 2 directiosn in fetus

Answer 12

IVC

Question 13

what leads to foramne ovale closure

Answer 13

pressure change

Question 14

why doesn’t blood go to fetal lungs very much

Answer 14

very high resistance

Question 15

how is ductus arteriosus closed and what does it become

Answer 15

O2 and decreased prstaglandin E2 after birth becomes ligamentum arteriosum

Question 16

where is ligamentum arteriosum

Answer 16

between aorta and pulmonary artery

Question 17

how close DA in babies with too wide DA

Answer 17

give NSAIDs - inhibit prostaglandins

Question 18

what is a “normal” pathology in baby lungs

Answer 18

partial collapses

Question 19

what does umbilical vein become

Answer 19

ligamentum teres(round ligament) - looks like little bit at bottom of falciform lig

Question 20

how non-shivering thermogenesis stimulated

Answer 20

ardenaline

Question 21

what injection babies at birth

Answer 21

vit k

Question 22

why jaundice

Answer 22

insoluble bilirubin

Question 23

how fix jaundice

Answer 23

blue light - makes bilirubin soluble