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2011-04-26 15:51:03
medic drugs test5 may2 medic12

medic drugs test5 may2 medic12
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  1. Dobutamine
    • (Dobutrex) Sympathomimetic
    • Des: synthetic catecholamine & beta agent that increases strength of cardiac contraction without appreciably increasing rate
    • Ind: increase cardiac output in CHF/cardiogenic shock
    • CI: 1)hypersensitivity to Sympathomimetic amines 2)ventricular tachycardia 3)hypovolemia without fluid resuscitation
    • PC: 1)atrial fibrillation 2)preexisting hypertension
    • Dose: 2-20 mcg/kg/min IV Ped: same
  2. Dopamine
    • (Intropin) Sympathomimetic
    • Des: naturally occurring catecholamine that increases cardiac output without appreciably increasing myocardial oxygen consumption. maintains renal & mesenteric blood flow while inducing vasoconstriction & increasing systolic BP
    • Ind: Nonhypovolemic hypotension (70 to 100 mmHg) & cardiogenic shock
    • CI: 1)hypovolemic hypotension w/out aggressive fluid resuscitation 2) tachydysrhythmias 3) ventricular fibrillation 4)pheochromocytoma
    • PC: 1)occlusive vascular disease 2)cold injury 3)arterial embolism 4)ensure adequate fluid resuscitation of the hypovolemic PT
    • Dose: 2-5 mcg/kg/min up to 20 mcg/kg/min, titrated to effect. Ped: same
  3. Isoprotenerol
    • (Isuprel) Sympathomimetic
    • Des: synthetic sympathomimetic results in increased cardiac output by increasing the strength of cardiac contraction and somewhat increasing rate.
    • Ind: bradycardia refractory to atropine when pacing is not available
    • CI: cardiogenic shock
    • PC: tachydysrhythmias & those associated w/ digitalis & acute myocardial infarction
    • Dose: bradycardia: 2-10 mcg/min titrated to cardiac rate. Ped: 0.1 mcg/kg/min titrated to cardiac rate
  4. Tetracaine
    • (Tetracaine) Ophthalmic, Anesthetics
    • Des: after topical application to the eye, local anesthetics penetrate to sensory nerve endings in the corneal tissue. these medications block both the initiation & conduction of nerve impulses by decreasing the neuronal membrane's permeability to sodium ions. this reversibly stabilizes the membrane and inhibits depolarization, resulting in the failure of a propagated action potential and subsequent conduction blockade
    • Ind: eye injuries or foreign body
    • CI: hypersensitivity
    • PC: 1)be monitored 2)hyperthyroid disease 3)cardiac diseases
    • Dose: 1-2 drops in each eye