Exam (elaborations)
H371 Perfusion
- Course
- Institution
Exam of 11 pages for the course Perfusion at Perfusion (H371 Perfusion)
[Show more]
Seller
Follow
topgradesdr
Reviews received
Content preview
H371 PerfusionWhat is Perfusion? - correct answer-flow of blood through arteries &
capillaries, delivering nutrients & 02 to cells & removing cellular waste
products
What is impaired perfusion?
What are the consequences of impaired perfusion?
-ultimately what can happen? - correct answer-impaired: cardiac output is
inadequate; not enough 02 blood reaching body tissues
if severe: shock;
ultimately (if untreated): cell death/injury
Which side of the heart has higher pressure?
lower? - correct answer-Right side- low pressure
Left side: higher pressure
Where does edema result from?
-what can reduces it? - correct answer-increase in hydrostatic pressure;
decrease colloid pressure
lymphatic system: collects excess interstitial fluid & protein; returns it to the
systemic circulation (reduces edema)
What is preload?
~increase preload?
, ~decreased preload? - correct answer-volume of blood in the ventricles before
end of diastole (b4 next contraction)
***amount of stretch applied to the ventricles at the end of diastole***
-determines the amount of stretch placed on myocarddial fibers
~increased: increased blood vol; hypervolemic ( heart has to work harder)
~decreased: decrease in stroke volume/Blood volume; diuretics; high fowlers
w/ legs dangling
What is Afterload?
~increased:
~decreased:
affected by: - correct answer-resistance left ventricle must overcome to
circulate blood
~increased: HTN, vasoconstriction of arteries & arterioles
~decreased: vasodilation of arteries/arterioles; decreased BP
Increase Afterload= increases cardiac workload
by---- degree of arteriolar constriction or dilation; blood viscosity & volume
What does systole mean?
What does diastole mean? - correct answer-systole: contraction of
myocardium= ejection of blood from ventricles
diastole: relaxation of the myocardium--> allows ventricles to fill
What is Cardiac output? - correct answer-amount of blood pumped by each
ventricle in 1 MIN
(CO= SV x HR)
What is Cardiax index? - correct answer-more precise measurement of the
efficiency of the pumping action of the heart (use bod surface area); way to
calculate CO
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller topgradesdr. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
77254 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now