CNUR 202 Unit 3 Exam Questions with Complete Solutions
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Course
CNUR 202 Unit 3
Institution
CNUR 202 Unit 3
CNUR 202 Unit 3 Exam Questions with Complete Solutions
What do cardioselective beta 1 blockers do? - Answer- - reduce SNS stimulation of the heart
- decrease HR
- decrease myocardial contractility
What do non-selective beta blockers do (beta 1 and beta 2)? - Answer- - cause same as effects...
CNUR 202 Unit 3 Exam Questions
with Complete Solutions
What do cardioselective beta 1 blockers do? - Answer- - reduce SNS stimulation of the
heart
- decrease HR
- decrease myocardial contractility
What do non-selective beta blockers do (beta 1 and beta 2)? - Answer- - cause same as
effects to heart as cardioselective beta 1 does
- constrict bronchioles
- causes vasoconstriction
How do beta blockers treat angina - Answer- - beta blockers will reduce the oxygen
needed by the heart by reducing the amount that the heart is contracting
How do beta blockers work with cardioprotective post-MI - Answer- - protect the heart
from catecholamine stimulation
How do beta blockers treat dysrhythmias - Answer- - slows conduction through AV node
which decreases heart rate
Beta blockers for htn, mi, and angina - Answer- - reduce HR and force of myocardial
contraction which will decrease oxygen demand of our heart
Beta blockers for HF, and dysrhythmias - Answer- - drugs used will lower our BP and
HR
- lower HR will make it easier for blood to get pumped out from left ventricle to rest of
body
beta blockers for migraines - Answer- - used for migraine prophylaxis
- glaucoma
Adrenergic Blocking Drugs: nursing implications - Answer- - dont administer if pulse is
low and if bp is low, take vital signs
- instruct patients to not stop medications abruptly, cany cause rebound hypertension
- tell patient to tell us if they are constipated or any bladder problems
What are cholinergic drugs - Answer- - they stimulate the parasympathetic nervous
system
, - often called cholinergic agonists
Two types of cholinergic receptors - Answer- nicotinic and muscarinic
Cholinergic Drugs Mechanism of Action - Answer- these drugs will bind to our
cholinergic receptors and activate them, parasympathetic nervous system then gets
stimulated
Drug Effects of Cholinergic agents - Answer- For intestine and bladder:
- increased motility
- gastric secretions
- increased urinary frequency
For pupils
- it will get stimulated
- constriction
Cholinergic Indications - Answer- - used as a neruomuscular blocker in general
anesthesia
- helpful for postsurgical atony of the bladder and GI tract
- relaxes sphincter of bladder and GI tract
- increases tone and motility of bladder and GI tract
- reduce intraocular pressure and useful for glaucoma
Adverse Effects - Answer- OVERSTIMULATION OF PNS
- bradycardia, hypotension
- ataxia, headache, dizziness
- abd cramps, big three, increased secretions
- increased bronchial secretions, bronchospasms
- sweating, salivation
What is a cholinergic crisis - Answer- - circulatory collapse
- hypotension
- bloody diarrhea
- shock
- cardiac arrest
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