patch test

a test to discover which allergen is responsible for contact dermatitis in a patient. Very low concentrations of common allergens (and any substances suspected of causing the dermatitis in the individual patient) are applied under a patch on the back. The patches are removed after 48 hours and the underlying skin is examined then and again after a further 48 hours. A positive test will show an eczematous reaction. The commonest allergens are nickel in women and chromium in men.

The new mediacal dictionary. 2014.

Look at other dictionaries:

  • patch test — n a test for determining allergic sensitivity that is made by applying to the unbroken skin small pads soaked with the allergen to be tested and that indicates sensitivity when irritation develops at the point of application compare INTRADERMAL… …   Medical dictionary

  • Patch test — may refer to*Patch test (finite elements) *Patch test (medicine) …   Wikipedia

  • patch test — patch′ test n. med a test for suspected allergy in which a patch impregnated with an allergen is applied to the skin • Etymology: 1930–35 …   From formal English to slang

  • patch test — n. Med. a test for determining allergy to a specific substance, made by attaching a sample of it, often a small piece of material saturated with the substance, to the skin and observing the reaction …   English World dictionary

  • Patch-Test — Der Patch Test in der Finite Elemente Methode ist ein einfacher Indikator für die Qualität eines finiten Elements. Er wurde von Bruce Irons entwickelt. Der Patch Test benutzt ein Gebiet aus mehreren Elementen, das so aufgebaut ist, dass die… …   Deutsch Wikipedia

  • Patch test — Lecture d un Prick test : différents allergènes ont été testés, certains sont fortement positifs, d autre moins. Le Patch test est une méthode utilisée en dermatologie pour déterminer si une substance spécifique est capable de provoquer une… …   Wikipédia en Français

  • patch test — Med. a test for suspected allergy by application to the skin of a patch impregnated with an allergen: allergic reaction is indicated by redness at the site of application. [1930 35] * * * Controlled application of biological or chemical… …   Universalium

  • patch test — noun a test to determine allergic sensitivity by applying small pads soaked with allergen to the unbroken skin • Hypernyms: ↑skin test …   Useful english dictionary

  • patch test — noun Date: 1933 a test for determining allergic sensitivity that is made by applying to the unbroken skin small pads soaked with the allergen to be tested …   New Collegiate Dictionary

  • patch test — noun an allergy test in which a range of substances are applied to the skin in light scratches or under a plaster …   English new terms dictionary

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