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16 Cards in this Set
- Front
- Back
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What is the function of Cardiac Glycosides?
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Slow HR via
+ inotropic effects increase Force/Velocity of Systolic contraction depress SA node slow AV node repol |
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T/F
cardiac glycosides have a (-) inotropic effect |
F
+ inotropic effect bc it changes the myocardial membrane permeability to Ca++ to increase contractile forces of HT and slow HR (nicotine has a -inotropic effect |
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describe a +inotropic effect
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increase contractive force of HT
Slow HR via permeability to Ca++ |
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T/F
it is easy to avoid digitoxicity by skipping dose if pulse is less than 60bpm |
true (cardiac glycosides)
(digitoxicity- bradycardia, vomit, HT Blocks) |
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Antiarrhythmic drug that slows Ca++ transport but has curtailed use due to causing severe diarrhea
a) Phenytoin (dilantin) b) Procainimide (pronestyl) c) Quinidine ( Quinaglute) d) Quinolones |
Quinidine
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____ antiarrhythmic is not used often due to its effects on the CNS and causing Gingival hyperplasia, and hursutism
a) Phenytoin (dilantin) b) Procainimide (pronestyl) c) Quinidine ( Quinaglute) d) Amiodarone (Cordarone) |
Phenytoin (delantin)
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____ used to treat intractable arrhythmias only
a) Phenytoin (dilantin) b) Procainimide (pronestyl) c) Flecainide (Tambocor) d) Tocainide (tonocard) |
Flecainide (tambocor)
(F=Fatal) |
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Antiarrhythmic that may cause pulmonary toxicity and blue/gray skin pigmentation
a) Phenytoin (dilantin) b) Procainimide (pronestyl) c) Bretyllium (bretylol) d) Amiodarone (Cordarone) |
Amiodarone (cordarone)- Ca++ channel blocker
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Anti-arrhythmic Oral alternative to Lidocaine
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tocainide (toocard)
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Incorrect statement about Ca+ channel blockers
a) increase afterload b) slow nodal conduction c) depress mechanical contraction and automaticity d) dilate arterioles |
DECREASE afterload
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Which is not an anti-hypertensive
a) Ca++ blockers b) ACE inhibitors c) Alpha adrenergic mechansim d) Cardiac Glycosides |
Cardiac Glycosides - slow HR
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ACE Inhibitor
a) Minoxidil (loniten) b) Lisinopril (Zestril) c) Atenolol d) Nifedipine (cardizem) |
Lisinopril (Zestril) = ACE
Minoxidil (loniten)= alpha Atenolol= beta Nifedipine (cardizem)= Ca++ |
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This antihypertensive may be prescribed to a px for diarrhea even though they have no cardiac issues
a) Amlodipine (Norvasc) b) Diltiazem (Cardizem) c) Verapamil (Calan) d) Clonidine (Catapres) |
Verapamil (calan) - Ca++ channel blocker
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Inhibits both beta1 and beta2 receptors to lower BP
a) Metroprolol (Lopressor) b) Atenolol (Tenormin) c) Propanolol (Inderal) d) Clonidine (Catapres) |
Propanolol (inderal) - Beta1,2
Metroprolol (Lopressor) - Beta 1 Atenolol (Tenormin) - Beta 1 |
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Antihypertensive that inhibits the symp cardioaccelerot and vasoconstrictive centers used for longterm treatment. Sudden cessation may cause severe rebound effects
a) Methyldopa (Aldomet) b) Clonidine (Catapres) c) Menoxidil (loniten) d) Lisinopril (Zestril) |
Clonidine (catapres) - alpha adrenergic
may also cause constipation, CHF, impotence |
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ACE inhibitors work via
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suppression of renin-angiotensin aldosterone system
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