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14 Cards in this Set

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depressants
stimulants
So far we have been discussing arrythmias that require cardiac _________ (tachycardia, flutter, fibrillation, etc). Some slower arrythmias require a cardiac ________, i.e. cardiac arrest or A-V block.
no
Would you use a cardiac stimulant chronically?
adrenergic agents
anticholinergic agents
What are the 2 cardiac stimulant agents that are used?
Epinephrine (alpha and beta agonist)
Isoproterenol (Beta agonist)
What are the 2 specific drugs (adrenergic agents) that are given for cardiac stimulants?
atropine
What is the specific drug (anticholinergic agent) that is given for cardiac stimulants?
Until heart starts

until electrical pacemaker fitted to overcome AV block
What are the temporary measure for drugs that are cardiac stimulants?
1. stimulates the B activity of heart (increases electrical impulses, and increases force of contraction) (adrenergic agonist)

2. Or blocks muscarinic slowing (anticholinergic agents)
What are the mechanisms of action for adrenergic and anticholinergic agents?
stimulates
electrical
muscarinic
1. __________ the B activity of heart (increases ________ impulses, and increases force of contraction) (adrenergic agonist)

2. Or blocks __________ slowing (anticholinergic agents)
1. Cardiac arrest
2. Hypotensive crisis
3. AV block
4. Bradycardia (chiefly use anticholinergic agent)
What are the therapeutic uses for cardiac stimulants?
palpitations

tachycardia

ventricular arrythmias
What are the toxic effects for cardiac stimulants in the heart?
headache

fear

anxiety

restlessness
What are the toxic effects for cardiac stimulants in the CNS?
may rise alarmingly
What are the toxic effects for cardiac stimulants for blood pressure?
1. Not for chronic use - make heart work too hard and increases O2 use.
2. Congestive heart failure
3. Angina pectoris
4. High BP

UNLESS CARDIAC ARREST - THEN LIFE OR DEATH SITUATION
What are the contraindications for cardiac stimulants?
chronic
failure
Angina
CARDIAC
1. Not for ________ use - make heart work too hard and increases O2 use.
2. Congestive heart _______
3. ______ pectoris
4. High BP

UNLESS _______ ARREST - THEN LIFE OR DEATH SITUATION