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Acute 2 Question and answers 100% correct

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Acute 2 Question and answers 100% correct Amount of test questions 3 Which side of the heart is considered the high pressure side and why? Left side because of SVR (systemic vascular resistance) What is CHD? Can involve any area of the heart. Change flow of blood in heart (hemodynamic...

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  • August 21, 2024
  • 18
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • acute 2
  • acute 2 question and answers 100 correct

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  • CCC2 PRN 1178
  • CCC2 PRN 1178

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Acute 2 - Unit 1: Congenital Heart
Disease (CHD)
Amount of test questions
3




Which side of the heart is considered the high pressure side and why?
Left side because of SVR (systemic vascular resistance)




What is CHD?
Can involve any area of the heart. Change flow of blood in heart
(hemodynamic flow problem). There are more than 35 kinds of defects, and
patients can have more than one kind of defect.




What are the normal pressures of the heart?
Right Atria: 3
Right Ventricle: 25/0-5
Left Atria: 5-10
Left Ventricle: 120/0-10




Name two changes in the flow of blood through the heart that are initiated with
the first few breaths of a new born

,1. Patent Ductus Arteriosus - chemoreceptors respond to the increased
oxygenation after birth closing the PDA


2. Foramen ovale - baroreceptors respond to increased Left sided heart
pressure after birth, closing the foramen ovale.




What are factors in the mother that may increase the risk for CHD?
Age over 40
Alcoholism
Diabetes
Poor nutrition during pregnancy (prenatal nutrition)
Rubella or other viral illness during pregnancy
Some genetic links




Acyanotic vs. Cyanotic
Acyanotic: Only oxygenated blood flowing to the body (and oxygenated blood
to lungs).
Cyanotic: Un-oxygenated blood flow to the body




How to classify CHD
Effect of defect on blood flow:
-Increased pulmonary blood flow (left to right shunt)
-Obstruction to blood flow out of the heart
-Decreased pulmonary blood flow

, -Mixed blood flow


Effect of defect on oxygenation of blood flowing to the body:
-Acyanotic
No un-oxygenated blood flowing to the body
-Cyanotic
Un-oxygenated blood flowing to body




Children with acyanotic heart defects rarely, if ever, have episodes of
cyanosis while children with cyanotic heart defects are frequently cyanotic:
True or false?
False.
Any child with CHD can have cyanotic periods. And just because a child has a
cyanotic defect doesn't mean they are cyanotic. It's only saying that there is
unoxygenated blood flowing out to the body (small amounts don't necessarily
lead to cyanosis).




Acyanotic CHD
-Increased pulmonary
blood flow (L to R shunt)
(exemplar = VSD)


-Obstruction to blood flow
out of the heart
(exemplar = Coarctation of the Aorta)

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