anaphylactoid reaction


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Related to anaphylactoid reaction: anaphylaxis, Anaphylactic reaction

anaphylactoid reaction

[¦an·ə·fə¦lak‚tȯid rē′ak·shən]
(medicine)
A nonallergic reaction resembling anaphylaxis and depending on the toxicity of the inductant.
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Raz, "Life-threatening anaphylactoid reaction associated with indigo carmine intravenous injection," Urology, vol.
Symptoms such as urticaria and anaphylactoid reactions do not stem from true allergic reactions as one would expect after ingesting food or other immune-system-provoking substance.
All iron replacement products have potential life-threatening anaphylactoid reactions (e.
No control skin tests were carried out and, on the basis of the patient's lack of previous exposure and non-elevated serum IgE levels, an anaphylactoid reaction caused by liberated histamine seemed likely.
A confirmed case of acute allergic-type reaction has been defined as an episode of anaphylactic or anaphylactoid reaction characterized by angioedema (particularly swelling of lips/mouth, tongue, throat, or eyelids) or urticaria.
But she was suddenly hit by an anaphylactoid reaction - a rapid allergic reaction which can affect multiple parts of the body.
Special Considerations: Urticaria, angioedema, bronchospasm, and shock might signal an allergic or anaphylactoid reaction.
Whenever mast cell mediator release occurs by a direct, non-IgE- mediated process, the term anaphylactoid reaction should be used.
Immediate hypersensitivity can be divided into three types or syndromes: allergy, anaphylaxis, and anaphylactoid reaction.
Some individuals, especially those with severe asthma, may have an anaphylactoid reaction to sulfites.