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24 Cards in this Set
- Front
- Back
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IA anti-arrythmics?
- - - MOA |
Quinidine
Procainamide Disopyramide MOA- increase AP, ERP and QT (Atrial and vent arrythmia especially reentrant) |
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IB anti-arrythmics?
- - - |
Lidocaine
Mexiletine Tocainide (phenytoin) Work well post MI |
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IC anti-arrythmics?
- - - Contrain? |
Flecainide, Encainide, Propafenone
(**contrain post MI) (IB work well though) |
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IB moa?
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Decrease AP* (one a increases)
affects ischemic or depolorized perkinje and ventricular tissue |
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IB anti-ar. uses?
- - |
V. arrythmias ****post MI
Digitalis arryth. |
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IC anti-arryth. MOA?
use? |
*no affect on AP*
Good for Vtachy leading to V fib and intractable SVT *LAST RESORT FOR TACHY arryths. |
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IC adverse affects?
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Proarrythmic espically in post MI(CONTRAINDICATED)
Prolongs refactory in AV node |
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IB adverse affects?
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Local anesthetic
CNS stim/depression Cardiovascular depression |
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Class II antiarrytmics?
- - - - - |
PEMAT
Propranolol Esmolol Metoprolol Atenolol Teimolol |
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Class III anti-arrythmics?
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ADSIB
Amiodarone Dofetilide Sotalol Ibutilide Bretylium |
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Class IV antiarrythmics?
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Varapamil
Diltiazam |
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Class II B-blockers moA?
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Decrease CAMP, Dec. calcium currents--> supress abnormal pacemakers by decreasing slope of phase IV
AV- node most sensitive* Increased PR DUH!!(slows slope phase 4 so takes longer to get through AV node) |
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Class II anti arrythmic uses?
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V-tach
SVT Slowing V. rate during a fibb/aflutter |
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Class III moa?
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Increase AP and ERP
Increase QT |
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Class III antiarryth. use?
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When other antiarrthmics fail
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Amioderone tests you want to look at?
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PFT, LFT, TFT
Pulmonary fibrosis Liver toxic Thyroid hypo/hyper |
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Sotalol AE?
- - |
Torsades de point
Excessive beta block |
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Class IV antiarrythmic moa?
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Decrease conduction velocity
Increase ERP and PR interval |
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Class IV antiarrythmics used when?
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Prevention of nodal arrythmias
(SVT eg.) |
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Class IV antiarrythmic advers effects?
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Relaxed smooth muscle (Constipation, flushing)
Edema CV affects (CHF, AV block, Sinus node depression) |
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Adenosine MOA?
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pumps K out of cells--->hyperpolorizing
Decreases Calcium current |
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Adenosine use?
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Drug of choice for
Diagnosing/abolishing supraventricular Tachy!!!** |
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Adenosine toxicity?
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Flushing
hypotension Chest pain |
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Adenosine affects blocked by?
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Theophylline
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