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16 Cards in this Set
- Front
- Back
Agonists
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Drugs with a specific receptor affinity that produce a “mimic” response.
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Angina
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Paroxysmal chest pain caused by myocardial ischemia.
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Antagonists
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Drugs that bind to adrenergic receptors and inhibit or block the action of neurotransmitters.
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Cardioprotective
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Term applied to B-blockers to inhibit stimulation of the heart by circulating catecholamines.
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Cardioselective b-blockers
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The b-blocking drugs that are selective for b1-adrenergic receptors. Also called B1-blocking drugs.
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Dysrhythmias
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Irregular heart rhythms; almost always called arrhythmias in clinical practice.
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Extravasation
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Leaking of fluid from the blood vessel into the surrounding tissues, as in the case of an infiltrated intravenous infuion.
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Glycogenolysis
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The production of glucose from glycogen in the liver, which is reduced by B-blockers.
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Intrinsic sympathomimetic activity
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Paradoxical action of some B-blocking drugs (e.g., acebutolol) that mimics the action of the sympathetic nervous system.
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Lipophilicity
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Chemical attraction of a substance (e.g., drug molecule) to lipid or fat molecules.
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Nonselective b-blockers
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The b-blocking drugs that block both b1- and B2-adrenergic receptors.
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Orthostatic hypotension
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Abnormally low blood pressure that occurs when a person assumes a standing position from a sitting or lying position.
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Oxytocics
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Drugs used to treat postpartum and postabortion bleeding caused by uterine relaxation and enlargement. They stimulate the smooth muscle of the uterus to contract.
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Pheochromocytoma
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A vascular adrenal gland tumor that is usually benign but secretes epinephrine and norepinephrine and thus often causes central nervous system stimulation and substantial blood pressure elevation.
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Sympatholytics
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Another name for adrenergic antagonist.
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Vaughan Williams classification
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System of classifying antidysrhythmic drugs.
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