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Samenvatting Cardio En Pneumo: TC graduaat VPK vives/Rhizo

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ik dit document wordt TC besproken

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TC: ZV met cardiale problemen

- Arteriële hypertensie
o bloeddruk
 hoeveelheid bloed + de kracht waarmee het rondgepompt wordt + de
weestand in de bloedvaten
o arteriële hypertensie
 elasticiteit arteriën neemt af  weerstand hoger  hogere arteriële druk

- bloeddrukvolume
o bloeddruk = Cardiac Output (co) * systeem vasculaire weerstand (SVR)

- bloeddruk geregeld door:
o zenuwstelsel en de bloedvaten
o de hersenen (ADH hormoon)
o de nieren (RAAS-systeem)

- medicamenteuze behandeling
o diuretica
 verhoogde water en zout uitscheiding waardoor overvulling en oedeem
afneemt
 volgens RR-formule
 diuretica doet slagvolume dalen

 nadeel (risico op)
 hypokaliëmie  waardoor kramp
 ondervulling , hypotensie  duizeligheid
 diabetogeen

 aandachtspunten
 controle ionogram
 vullingsgraad nagaan
 nierfunctie volgen
 regelmatig glycemiecontrole

o Bètablokkers
 Blokkeren Bèta-receptoren  verhinderen werking adrenaline op Bèta
receptoren thv hart  adrenaline kan niet inwerken op hartspier 
vertraging hartfrequentie

 Formule
 Doet hartfrequentie dalen

 Nadeel
 Hypotensie
 Bradycardie
 Moeheid en minderprestatievermogen (door dalen HF, door minder
adrenaline)
 Bronchus obstructie

,  Aandachtspunten
 Opletten bij astma, diabetes
 Zeer lage aanvangsdosis, gradueel tot doeldosis verhogen

o Calciumantagonisten
 Zijn pure vaatverwijderaars. Calcium (kalk) in spierwand van bloedvaten te
remmen, spierlaag kan moeilijker samentrekken
Vasodilatatie vaatwand = daling van de RR

 Formule
 Werkt in op de weerstand (dalen)

 Nadeel
 Perifere vasodilatatie: hoofdpijn, oedeem onderste ledematen,
flushing (rood gelaat) en hypotensie

o ACE-inhibitoren (angiotensine converting enzyme)
 Blokkeren overgang angiotensine 1 naar 2  hierdoor minder aldosterone
 waardoor minder vocht en zout opgehouden + geen vasoconstrictie
 Hoeksteen in behandeling hartfalen





 Formule
 Doet slagvolume dalen (co)
 Weerstand dalen door vasodilatatie (SVR)
 Nadeel
 Hypotensie
 Nierfunctiebeperking
 Prikkelhoest (overgaan naar ARB’s)

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Number of pages
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Written in
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