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8 Cards in this Set
- Front
- Back
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adrenergic antagonists
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drugs that block the actions of the sympathetic nervous system
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alpha-adrenergic antagonists
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drugs that block alpha-adrenergic receptors in the sympathetic nervous system
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beta-adrenergic antagonists
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also called beta blockers, drugs that block beta-adrenergic receptors; may be nonselective or selective
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first-dose phenomenon
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serious orthostatic hypotension that occurs with the initial doses of alpha1-adrenergic blockers
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intrinsic sympathomimetic activity (ISA)
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low level of beta-agonist activity possessed by certain beta adrenergic blockers
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orthostatic hypotension
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fall in blood pressure that occurs when changing position from recumbent to upright
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pheochromocytoma
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a tumor, usually benign, arising from the adrenal medulla that is characterized by excessive secretion of catecholamines
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Raynaud's disease
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vasospasms of vessels leading to the fingers and toes can lead to intermittent pain and cyanosis of the digits
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