Exam (elaborations)
N305 - Heart Failure questions with correct answers
- Course
- Nurs 305
- Institution
- Queens College
N305 - Heart Failure questions with correct answers
[Show more]
Content preview
N305 - Heart Failure questions with correct answersWhat is heart failure? Correct Answer-Syndrome characterized by
inability of myocardium to pump enough blood to meet body's demands
Response to cardiac dysfunction
NOT an event - a long-term chronic condition that progressively
worsens over time
What are the two most common causes of heart failure? Correct Answer-
Coronary artery disease (affects vessel integrity, heart muscle dies from
ischemia)
Hypertension (contracting against high pressure leads to maladaptive
mechanisms)
What 3 major systems are recruited when myocardial injury occurs?
Correct Answer-Sympathetic nervous system
Renin-angiotensin-aldosterone system
Natriuretic peptide system
What are some compensation mechanisms that occur during heart
failure? Correct Answer-Elevated SNS activity (increase HR and
contractility)
Increase blood volume (RAAS)
Dilation of the ventricle (take in more blood volume)
, Ventricular hypertrophy (increase muscle mass)
What is the Frank starling mechanism? Correct Answer-Increased
stretch in ventricles to initially increase CO, but results in stretched
myocardium that does not function as well
What counter-regulatory mechanisms are seen in the natriuretic peptide
system during heart failure? Correct Answer-Brain naturetic peptide
(BNP) and atrial natiretic pepetide (ANP) released in response to
myocardial stress and volume expansion
Diuretic and hypotensive effects via RAAS inhibition
What effect does increased diastolic pressure have on the heart? Correct
Answer-Promotes congestion and edema in venous circulation
How does vasoconstriction affect the heart? Correct Answer-Depresses
cardaic function
Enhances rate of deterioration of the myocardium
How do increased contractility, HR and vasoconstriction affect the
coronary arteries? Correct Answer-Provokes coronary ischemia
Which compensation mechanism contributes to myocardial hypertrophy
and fibrosis? Correct Answer-Release of:
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 cracker. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $16.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82215 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now