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11 Cards in this Set
- Front
- Back
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What are the mechanisms of Class IA drugs? Used for?
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Sa channel blockade
K channel blockade Decreased conduction velocity (QRS widening) Prolong repolarization (QT prolongation) Used for Afib and ventricular arrhythmias |
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A/e of IA?
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GI: N/v/d
Fever hypotension Tinnitis, blurred vision, headache |
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Mechansisms of Class IB?
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Na channel blockade
Decreased conduction velocity Shorten repolarization (shorten QT) Used for prevention and termination of ventricular arrhythmias |
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A/e of IB?
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GI
agranulocytosis Diplopia drowsiness |
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Mechanisms of IC?
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Na channel blockade
Decreased conduction velocity (QRS widening) |
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Inidcations for IC?
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A fib, ventricular arrhythmias, chronic suppression of both
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A/e of IC?
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CNS
HA Bradycardia Proarrhythmia (vtach) N/v |
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Indication and mechanism of II?
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Indicated for Afib, ventricular arrhythmias
MOA: Beta blockade No change in repolarization Slows conduction through AV node Decrased HR |
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A/e of II?
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drowsiness, depression, hypotension, brady, heart block,
Exacerbation of HF |
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Indication and mechanism of class III?
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Indicated for A fib and ventricular arrhythmias to convert to NSR.
K-channel blockade Prolongs repolarization (QT) |
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A/e for class III?
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Thyroid abnormalities
Eye problmes Neurologic problems Pulmonary toxicity GI |
