gnur 294 exam iii ans amp cardiovasuclar gnur294 exam iii ans amp newest 2022
Written for
Loyola University Chicago
GNUR 294 (GNUR294)
All documents for this subject (66)
Seller
Follow
kuglin
Reviews received
Content preview
GNUR 294 EXAM III
Autonomic Nervous System
Focus on the sympathetic nervous system
PNS does the opposite of the SNS
Adrenergic- adrenaline
Norepinephrine
Helps to bind with these receptors and make a response in the system
Alpha receptors and beta receptors
Almost al the drugs (from a cardiovascular standpoint) will effect these
receptors i.e. beta 2- adrenergic agonists
Sympathetic- fight or flight
All of these things that occur when NE is released and binds with the
adrenergic receptors and all the adrenaline will be released
1. The heart rate will go up- higher rate to support the oxygen needs
2. Blood pressure goes up
3. Bronchioles are going to dilate- deeper breaths and more oxygen
4. Glucose released by the liver (stored as glycogen in the liver)
Because of all the blood is being shunted to the main organs, the organs that
don’t really make a difference all will be stopped i.e. digesting food
Patients who have an increased heart rate or BP or extra myocardial oxygen
demands b/c of blocked vessels are going to need this processed blocked
from happening
If someone is critically ill and dying going to give them synthetic versions of
these drugs to increase hear rate, BP, etc.
To be an agonist of these drugs is going to be in emergency situations
To be an antagonist will be given a lot
Alpha agonists and beta agonists
If I want to bind with someone need to see what these receptors do
specifically
Alpha 1 receptors:
o Causes vasoconstriction- usually more peripheral vasoconstriction
o Pupillary dilatation
Beta 1 (cardiac receptors)
o Increased heart rate, increased contractility- work on the heart itself
o Decrease insulin release from pancrease and liver
Beta 2
o bronchodilation
o Relaxation of the uterus
Nonselective Adrenergic Agonist- affects alpha and beta receptors
Have to know what it is going to effect
Older categories of drugs
Epinephrine- if given going to cause massive vasoconstriction, increased
heart rate, increased BP, slow down the digestive system, bronchodilation.
Might be given to people in anaphylaxis (allergires) – the histamine rlease
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 kuglin. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.49. You're not tied to anything after your purchase.
