Anaphylaxis overview: Difference between revisions
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==Overview== | ==Overview== | ||
''Anaphylaxis'' is an [[acute (medical)|acute]] systemic (multi-system) and severe Type I Hypersensitivity [[allergy|allergic]] reaction in humans and other [[mammal]]s. Anaphylaxis occurs when a person or animal is exposed to a trigger substance, called an [[allergen]], to which they have already become sensitized. Minute amounts of allergens may cause a life-threatening anaphylactic reaction. Anaphylaxis may occur after ingestion, skin contact, injection of an allergen or, in rare cases, inhalation. | |||
==Historical Perspective== | ==Historical Perspective== | ||
The term comes from the Greek words ''ana'' (against) and ''phylaxis'' (protection).<ref>"Anaphylaxis." Etymology. ''Oxford English Dictionary''. http://dictionary.oed.com.</ref> | The term comes from the Greek words ''ana'' (against) and ''phylaxis'' (protection).<ref>"Anaphylaxis." Etymology. ''Oxford English Dictionary''. http://dictionary.oed.com.</ref> | ||
Revision as of 21:04, 5 February 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
Anaphylaxis is an acute systemic (multi-system) and severe Type I Hypersensitivity allergic reaction in humans and other mammals. Anaphylaxis occurs when a person or animal is exposed to a trigger substance, called an allergen, to which they have already become sensitized. Minute amounts of allergens may cause a life-threatening anaphylactic reaction. Anaphylaxis may occur after ingestion, skin contact, injection of an allergen or, in rare cases, inhalation.
Historical Perspective
The term comes from the Greek words ana (against) and phylaxis (protection).[1]
References
- ↑ "Anaphylaxis." Etymology. Oxford English Dictionary. http://dictionary.oed.com.