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14 Cards in this Set
- Front
- Back
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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.
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no
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Would you use a cardiac stimulant chronically?
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adrenergic agents
anticholinergic agents |
What are the 2 cardiac stimulant agents that are used?
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Epinephrine (alpha and beta agonist)
Isoproterenol (Beta agonist) |
What are the 2 specific drugs (adrenergic agents) that are given for cardiac stimulants?
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atropine
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What is the specific drug (anticholinergic agent) that is given for cardiac stimulants?
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Until heart starts
until electrical pacemaker fitted to overcome AV block |
What are the temporary measure for drugs that are cardiac stimulants?
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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?
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stimulates
electrical muscarinic |
1. __________ the B activity of heart (increases ________ impulses, and increases force of contraction) (adrenergic agonist)
2. Or blocks __________ slowing (anticholinergic agents) |
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1. Cardiac arrest
2. Hypotensive crisis 3. AV block 4. Bradycardia (chiefly use anticholinergic agent) |
What are the therapeutic uses for cardiac stimulants?
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palpitations
tachycardia ventricular arrythmias |
What are the toxic effects for cardiac stimulants in the heart?
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headache
fear anxiety restlessness |
What are the toxic effects for cardiac stimulants in the CNS?
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may rise alarmingly
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What are the toxic effects for cardiac stimulants for blood pressure?
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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?
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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 |
