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5 Written questions

5 Matching questions

  1. Class IA
  2. Alpha adrenergic blockers
  3. class i drugs
  4. Alpha
  5. Phosphodiesterase inhibitors
  1. a Quinidine, Procainamide, Disopyramide /// Widens the QRS/QT interval /// depresses contractility
  2. b blocks the alpha receptors in arteries and veins// blocks vasoconstriction and is a vasodilator // Labetalol = peripheral alpha blocker and cardioselective beta blocker // Regitine
  3. c sodium channel blockers - slow down contractility - prolong the absolute refractory period
  4. d Peripheral arteeriole vasoconstrictors// push fluid from the peripheral to the trunk // Increases preload and afterload /// Increases blood pressure/// Used in hypotensive patients /// increases mVo2 and decreases circulation to the extremities (fingers and toes)
  5. e positive inotropes, positive vasodilators, increases CO due to decreased afterload /// Amrinone (Inocor) and Milrinone (Primacor) decreases afterload

5 Multiple choice questions

  1. < 3 mcg/kh/min has a dopaminergic effect (vasodilates) and is used to improve perfusion of the kidneys
  2. alter blood pressure by altering preload and afterload, alters distribution of blood in teh body
  3. peripheral vasodilators, decrease PVR, Nipride, Nitroglycerin, and Hydralazine
  4. potent arterial vasodilator// IV 5-10 mg q 4-8 hours // usually given between continuous infusion and oral dose of hypertensive meds
  5. Lidocaine, Mexiletine, and Tocainide /// treats SVT /// moderate effect on sodium channels /// shortens action potential

5 True/False questions

  1. DA-1 receptor agonistProduce sympathomimetic response (stimulate the heart rate and blood pressure) Naturally occuring = dopamine, epinephrine, norepinephrine, and phenylephrine/// synthetic = dobutamine and isoproterenol


  2. Isoproterenol (Isuprel)dosage is 1-7 mcg/min and has a beta 1 and a beta 2 effect


  3. Inotropic drugsenhance myocardial contractility/// include cardiac glycosides (digoxin), sympathomimetics, and phosphodiesterase inhibitors /// controls ventricular rate/// give for atrial fib /// used to improve stroke volume they increase contractility; however, oxygen consumption goes up increasing the workload on the heart


  4. High dose dopamine3-10 mcg/kg/min has a beta 1 effect (increases contractility and stroke volume) if CO is increased then that's just a bonus


  5. Afterloadamount of blood left in the right ventricle at the end of diastole