Term
| Inhibits reabsorption of Na+, Cl- and water in the loop of Henle, as well as in the convoluted tubule of the nephron, which causes decreased absorption of water and therefore increases urine production. |
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Definition
Lasix (Furosemide)
Loop Diuretic |
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Term
| CNS depressant, depressant of smooth, skeletal, cardiac muscle |
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Definition
Magnesium Sulfate
Electrolyte |
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Term
| (Binds with alpha & beta receptors) B1 (heart): increases inotropy, dromotropy, chronotropy, AV conduction. B2: bronchodilation; Alpha: vasoconstriction |
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Definition
Epinephrine (Adrenalin)
Sympathomimetic |
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Term
| Acts directly on the myocardium to delay depolarization & increase the duration of the action potential. |
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Definition
Amiodarone (Cordarone)
Class III antiarrhythmic (K+ blockade) w/ effects of all other classes |
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Term
| Blocks Ca++ from moving into myocardial cells, which prolongs conduction of electrical impulses through AV Node, controlling ventricular rate. |
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Definition
Cardizem (Diltiazem)
Non-DHP Ca++ channel blocker (Class IV antiarrhythmic) |
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Term
| Blocks influx of Na+ through membrane pores which suppresses atrial & ventricular arrhythmias by slowing conduction in myocardial tissue. |
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Definition
Procainamide (Pronestyl)
K+ & Fast Na+ channel blocker (class 1a) |
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Term
| Blocks beta 1 receptor sites (SA, AV, ventricles) causing decreased HR, CO, BP. |
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Definition
Metoprolol (Lopressor, Toprol XL)
Beta blocker (class II) |
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Term
| Competes w/ Ach receptor sites @ SA & AV nodes causing increased HR by increasing conduction @ nodes. Inhibits secretions by decreasing PNS effects on salivary, bronchial, sweat, heart, GI tract. |
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Definition
Atropine Sulfate
Anticholinergic |
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Term
| Relaxes smooth muscles, dilating peripheral arteries/veins which causes venous pooling, decreasing venous return to the heart & therefore preload. Also decreases L ventricular systolic wall tension, decreasing afterload. |
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Definition
Nitroglycerin (Nitrolingual, Nitroquick, Nitro-Dur)
Antianginal (nitrate: generically nitrates cause vasodilation w/o blocking alpha sites. Relax smooth muscle.) |
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Term
| Slows conduction of electrical impulses @ AV node. |
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Definition
Adenosine (Adenocard)
Antiarrhythmic (Endogenous nucleoside--The "A" of "ATP") |
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Term
| Blocks Na+ channels, increasing recovery period after repolarization; Suppresses automaticity in His-Purkinje system & depolarization in ventricles. |
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Definition
Lidocaine (Xylocaine)
Fast Na+ channel blocker (1b antiarrhythmic) |
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Term
| Blocks Ca++ from moving into the myocardium, which prolongs the conduction of electrical impulses through the AV node. Dilates arteries. |
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Definition
Verapamil (Isoptin)
Non-DHP CA++ channel blocker (Class IV) |
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Term
| Prevents formation of TA2 which causes platelets to aggregate. (Interrupts step 1 of clotting.) Inhibits prostaglandin. |
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Definition
Aspirin (ASA)
Antiplatelet; Antipyretic; Nonnarcotic analgesic |
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Term
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Definition
Vasopressin (Pitressin)
Hormone (ADH); Nonadrenergic vasoconstrictor |
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Term
Low dose (5 mcg/kg/min) predominantly B1 effects (mostly inotropic--increased CO);
Med dose (10 mcg/kg/min) alpha & beta;
High dose (20 mcg/kg/min) alpha (vascular constriction) |
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Definition
Dopamine (Intropin)
Sympathomimetic; Inotrope; Vasopressor |
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