Term
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Definition
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Term
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Definition
| Slows electrical conduction through AV node, and interrupts reentry pathways, converting SVT to normal sinus rhythm |
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Term
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Definition
| Bronchodilator: Sympathomimetic (beta-2 specific) |
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Term
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Definition
- Relaxes bronchial smooth muscles by stimulating beta-2 adrenergic receptors
- Produces bronchodilation, relieves bronchospasm and reduces airway resistance |
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Term
| Class of amiodarone hydrochloride |
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Definition
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Term
| Action of amiodarone hydrochloride |
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Definition
- Blocks sodium potassium and calcium channels in cardiac cells slowly electrical conduction and prolonging repolarization
- Has Alpha and beta-adrenergic blocking properties causing negative inotropic effects and reduces peripheral vascular resistance (afterload) |
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Term
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Definition
| Platelet aggression inhibitor |
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Term
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Definition
- inhibits normal tendency for platelets to accumulate inside injured or occluded coronary arteries, thereby improving bloodflow through vessels to better perfuse the heart
- blocks formation of thromboxin A2 |
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Term
| Class of atropine sulfate |
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Definition
- antiarrhythmic
- anticholinergic |
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Term
| Action of atropine sulfate |
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Definition
- competes with acetylcholine for receptor sites blocking the PNS response at the SA and AV nodes
- increases heart rate by increasing electrical conduction through the heart
- positive chronotropic properties with little or no inotropic effects
- inhibits secretions by decreasing PNS effect on bronchial, salivary, sweat and G.I. glands |
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Term
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Definition
| Bronchodilator anticholinergic |
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Term
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Definition
- antagonize is the action of acetylcholine, preventing the interaction of acetylcholine with muscarinic receptors in bronchial smooth muscle causing bronchodilation
- dries respiratory tract secretions |
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Term
| Class of calcium chloride |
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Definition
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Term
| Action of calcium chloride |
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Definition
- increases myocardial contractility
- enhances ventricular automaticity
- reverses cardio-electric changes produced by hyperkalemia
- shifts potassium back into cell to prevent intravascular hyperkalemia |
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Term
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Definition
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Term
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Definition
- Binds and absorbs ingested toxins present in G.I. tract
- Inhibits intestinal absorption, preventing systemic toxicity |
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Term
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Definition
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Term
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Definition
| Increases blood glucose by producing a quick release of free sugar into the circulation |
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Term
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Definition
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Term
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Definition
- binds to histamine receptor sites blocking H1 and H2 receptors
-h1 causes bronchoconstriction, airway swelling and vasodilation
H2 causes secretion of gastric acid
- does not prevent histamine release |
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Term
| Class of dopamine hydrochloride |
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Definition
| Vasopressor: sympathomimetic (both alpha and beta properties) |
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Term
| Action of dopamine hydrochloride |
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Definition
- at low and medium doses, selectively dilates blood vessels supplying the brain, kidneys, heart and gastrointestinal tract
- at medium high doses, increases cardiac output by improving contractility and stroke volume, thereby increasing blood pressure
- at high doses, causes vasoconstriction and increased heart rate |
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Term
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Definition
| Catecholamine: sympathomimetic (both alpha and beta effects) |
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Term
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Definition
- on the bronchi: bronchodilation (beta-2)
- on the peripheral vasculature: vasoconstriction (alpha)
- on the heart:
- increased heart rate (beta-1)/ chronotropic
- increased contractility / inotropic
- increased AV conduction / dromotropic
- increased automaticity / dromotropic |
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Term
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Definition
| Antihupoglycemic: pancreatic hormone |
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Term
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Definition
- Increases blood glucose by converting glycogen stored in the liver to glucose
- inhibits synthesis of glycogen from glucose |
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Term
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Definition
| Benzodiazepine: sedative/anticonvulsant |
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Term
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Definition
- cNS depressant
- produces anterograde amnesia, then sedation
- stops and prevents seizures |
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Term
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Definition
- opioid
- narcotic analgesic |
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Term
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Definition
- CNS depressant acting on opiate receptors in the brain
- potent analgesic and sedative |
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Term
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Definition
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Term
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Definition
| Reverses respiratory depression, sedation and hypotensive effects of opioid overdose by occupying opiate receptor sites |
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Term
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Definition
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Term
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Definition
- produces vasodilation by relaxing systemic venous and arterial vessels, thereby:
- decreasing preload and afterload
- decreasing myocardial workload
- decreasing myocardial O2 consumption
- dilates coronary arteries |
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Term
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Definition
| Electrolyte / Isotonic crystalloid |
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Term
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Definition
- electrolyte solution, which is osmotically equivalent to blood
- increases the circulating volume of the vascular system. (2/3 of infused volume leaves vascular space within 1 hour) |
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Term
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Definition
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Term
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Definition
| Blocks serotonin receptors in vegus nerve terminals and in the small intestine that trigger the vomiting reflex |
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Term
| Class of sodium bicarbonate |
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Definition
- electrolyte
- alkalizing agent |
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Term
| Action of sodium bicarbonate |
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Definition
| Reduces acidosis or causes alkalosis by Dratch release of bicarbonate ion into the circulation |
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Term
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Definition
| Antiarrhythmic / anesthetic |
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Term
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Definition
- depresses polarization and automaticity in the ventricles
- increases the ventricular fibrillation threshold by increasing phase IV repolarization
- amide-type local anesthetic |
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