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OVV-1 week 5 De Foetoneonatale transitie

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De Foetoneonatale transitie

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Uploaded on
April 2, 2021
Number of pages
3
Written in
2020/2021
Type
Class notes
Professor(s)
Petra habets en irene de graaf
Contains
Week 5

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WC De foetoneonatale transitie

Normale transitie:
- Intra → extra uterien leven

Poll 1
De ontwikkeling van de foetale longen: welke stelling is juist?
Antwoord: De foetale long secreteert vocht welk druk uitoefent op de longen.

Saturatie (zuurstofverzadiging van Hb aan bloed) baby= 60%, minder nodig
omdat de moeder het geeft
Gezonde volwassenen saturatie= boven 95%

Pulmonaal
Circulatoir

Placenta gaswisseling orgaan:
- Long voor geboorte
- geen gaswisseling
- wel longontwikkeling en longgroei: secretie longvocht
- weinig perfusie: 20% cardiac

Placenta wordt vervangen door de longen

Longen luchthoudend maken (licht roze)

De longen worden na de geboorte luchthoudend. Welke stelling over het verdwijnen van het
longvocht is juist?
Antwoord: het grootste deel van het longvocht wordt door het interstitium van de long
geabsorbeerd.

Placentafunctie verdwijnt wanneer de navelstreng wordt geknipt.

Longen: vocht → lucht
Secretie naar resorptie
1. weeën: stop longvocht secretie
2. longvocht expulsie uit de thorax door contracties en passage geboortekanaal
vocht wegduwen en longblaasjes openhouden → hard huilen

Interstitium= steunend voor opzuigen vocht of afvoeren naar lymfevaten, v. cava inferior en
superior

Surfactant= longblaasjes openhouden

O2 opname gaat stijgen waardoor de SpO2 oploopt: regelmatig adempatroon.
Lage O2 waarde= niet regelmatig te ademen
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