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  2. Patch test - Wikipedia

    en.wikipedia.org/wiki/Patch_test

    A patch test relies on the principle of a type IV hypersensitivity reaction.. The first step in becoming allergic is sensitization. When skin is exposed to an allergen, the antigen-presenting cells (APCs) – also known as Langerhans cell or Dermal Dendritic Cell – phagocytize the substance, break it down to smaller components and present them on their surface bound major histocompatibility ...

  3. Allergic contact dermatitis - Wikipedia

    en.wikipedia.org/wiki/Allergic_contact_dermatitis

    A patch test (contact delayed hypersensitivity allergy test) [17] is a commonly used examination to determine the exact cause of an allergic contact dermatitis. According to the American Academy of Allergy, Asthma, and Immunology, "patch testing is the gold standard for contact allergen identification".

  4. Skin test - Wikipedia

    en.wikipedia.org/wiki/Skin_test

    1 Examples. 2 References. Toggle the table of contents. ... Download as PDF; Printable version; ... Patch test; Schick test;

  5. Allergy - Wikipedia

    en.wikipedia.org/wiki/Allergy

    Patch test. Patch testing is a method used to determine if a specific substance causes allergic inflammation of the skin. It tests for delayed reactions. It is used to help ascertain the cause of skin contact allergy or contact dermatitis. Adhesive patches, usually treated with several common allergic chemicals or skin sensitizers, are applied ...

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  7. NYT ‘Connections’ Hints and Answers Today, Friday, January 17

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    If you've been having trouble with any of the connections or words in Friday's puzzle, you're not alone and these hints should definitely help you out. Plus, I'll reveal the answers further down ...

  8. Alcohol intolerance - Wikipedia

    en.wikipedia.org/wiki/Alcohol_intolerance

    In an ethanol patch test, different concentrations of ethanol are applied onto lint pads and attached to the inner surface of the upper arm for several minutes. If skin redness occurs after 10–15 minutes, the individual is deemed to have a lack of ALDH1 associated with alcohol intolerance.

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