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vasoconstrictor
vasoconstrictor (vay-zoh-kŏn-strik-ter) n. an agent that causes narrowing of the blood vessels and therefore a decrease in blood flow. Vasoconstrictors are alpha agonists (see sympathomimetic), used to raise the blood pressure in disorders of the circulation, shock, or severe bleeding and to maintain blood pressure during surgery (see ephedrine, metaraminol, phenylephrine). Some (e.g. ephedrine, xylometazoline) are used to treat nasal congestion.
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"vasoconstrictor." A Dictionary of Nursing. 2008. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "vasoconstrictor." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O62-vasoconstrictor.html "vasoconstrictor." A Dictionary of Nursing. 2008. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-vasoconstrictor.html |
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vasoconstriction
vas·o·con·stric·tion / ˌvāzōkənˈstrikshən; ˌvasō-/ • n. the constriction of blood vessels, which increases blood pressure. DERIVATIVES: vas·o·con·stric·tive / -ˈstriktiv/ adj.vas·o·con·stric·tor / -ˈstriktər/ n. |
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"vasoconstriction." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "vasoconstriction." The Oxford Pocket Dictionary of Current English. 2009. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O999-vasoconstriction.html "vasoconstriction." The Oxford Pocket Dictionary of Current English. 2009. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O999-vasoconstriction.html |
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vasoconstriction
vasoconstriction The reduction in the internal diameter of blood vessels, especially arterioles or capillaries. The constriction of arterioles is mediated by the action of nerves on the smooth muscle fibres of the arteriole walls and results in an increase in blood pressure.
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"vasoconstriction." A Dictionary of Biology. 2004. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "vasoconstriction." A Dictionary of Biology. 2004. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O6-vasoconstriction.html "vasoconstriction." A Dictionary of Biology. 2004. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O6-vasoconstriction.html |
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vasoconstrictor
vasoconstrictor Any substance that causes constriction of blood vessels and, therefore, decreased blood flow. Examples include noradrenaline, angiotensin, and the hormone vasopressin (also known as anti-diuretic hormone).
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"vasoconstrictor." World Encyclopedia. 2005. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "vasoconstrictor." World Encyclopedia. 2005. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O142-vasoconstrictor.html "vasoconstrictor." World Encyclopedia. 2005. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O142-vasoconstrictor.html |
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vasoconstriction
vasoconstriction (vay-zoh-kŏn-strik-shŏn) n. a decrease in the diameter of blood vessels, especially arteries.
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Cite this article
"vasoconstriction." A Dictionary of Nursing. 2008. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. "vasoconstriction." A Dictionary of Nursing. 2008. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O62-vasoconstriction.html "vasoconstriction." A Dictionary of Nursing. 2008. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-vasoconstriction.html |
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vasoconstriction
vasoconstriction Constriction of the blood vessels; the reverse of vasodilatation.
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DAVID A. BENDER. "vasoconstriction." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. 28 May. 2012 <http://www.encyclopedia.com>. DAVID A. BENDER. "vasoconstriction." A Dictionary of Food and Nutrition. 2005. Encyclopedia.com. (May 28, 2012). http://www.encyclopedia.com/doc/1O39-vasoconstriction.html DAVID A. BENDER. "vasoconstriction." A Dictionary of Food and Nutrition. 2005. Retrieved May 28, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O39-vasoconstriction.html |
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