Dr. Graves Questions
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- Procainamide primarily inhibits depolarization through inhibition of which type of ion channel?
- sodium
- which of the following is not a property of digoxin?
- inhibition of a cAMP-dependent PDE
- What ARE the properties of digoxin?
- decreased conduction speed in AV node cells, resetting of mem potential to a less negative value, increased contractility, incrased vagal activity
- Which of the following agents would be useful for the most rapid treatment of stable angina?
- sublingual nitroglycerin
- captopril exerts its vasodilator effects on all of the following except:
- increasing aldosterone secretion
- which of the following agents would have the greatest direct effect on relaxation of the vasculature?
- prazosin
- which of the following drugs would not be the agent of choice for the treatment of a patient with angina and COPD?
- propranolol
- digoxin is sometimes used to treat atrial fibrillation because it
- promotes conduction block at AV node
- which of the following is true of clonidine for htn tx?
- adrenergic agonist that reduces sympathetic outflow
- diltiazem...
- slows ventricular rate resulting from atrial flutter, triggers tachycardia via BRR, reduces MAP, does not choose btwn cardiac or VSMC ca channels
- the class III antiarrhythmic drug amiodarone
- prolongs refractory periods and interrupts ventricular re-entry circuits