patch test

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patch test

Controlled application of biological or chemical substances to the skin to test for allergy. Small amounts of diluted test substances applied under a patch of cloth or soft paper and an impermeable membrane are left in place for 48 hours, and the skin reaction is then examined and scored from 0 (none) to 4+ (severe blistering and redness).

patch test [′pach ‚test]

(immunology)

A test in which material is applied and left in contact with intact skin surfaces for 48 hours in order to demonstrate tissue sensitivity.

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No references found			Manufacturers say do a patch test 48 hours before using the dye, but my reaction didn't show for 72 hours. HAIR DYE LEFT ME IN HOSPITAL by Daily Post (Liverpool, England) CAPTION(S): BLAMED Boots dye kit AFTER Face swelled into terrible blisters BEFORE Zoe says she carried out patch test HAIR DYE HORROR; Zoe rushed to burns hospital by The Mirror (London, England) But over all, if after a patch test you realise mineral make- up suits your skin, it's the best and one of the most fuss- free way to having a smooth, blemish- free skin. NATURALLY YOURS by Mail Today (New Delhi, India)			Patan patand Patani Patanjali Patañjali Patapsco Patapsco Valley State Park Patara Patara-Tsemi Pataridze, Zurab Pataridze, Zurab Aleksandrovich Patarine Patarines Patay patch patch board patch bolt patch budding patch cable patch cord patch management patch panel patch pumpkin patch reef patch space patch test Patch Tuesday Patch, Alexander Patch, Sam Patchboard Patchen, Kenneth Patchogue Patchouli patchouli oil PATCHY pate patée cross Patel, Vallabhai Patel, Vallabhbhai patella Patellacea Patellidae paten Patenier, Joachim de Patent patent base patent board Patent Clearance Patent Fee patent foramen ovale patent glazing			patch grafting patch grafting patch grafting patch grafting Patch Guard Patch ice patch lead patch lead patch leads patch leads patch management Patch Non Officiel Oblivion Patch panel Patch panel Patch panel Patch Panel Label patch panels patch panels patch pocket patch pockets patch pumpkin Patch Queue Manager patch quilt patch reef patch reefs Patch Set Exception Patch Set Update Patch Size Coefficient of Variation Patch Slice Micro-Incubator patch space patch test Patch tests Patch tests Patch tests Patch tests Patch tests patch together patch together patch together patch together patch together Patch Tuesday patch up patch up patch up patch up patch up patch up a quarrel Patch, Alexander Patch, Sam Patch-Clamp Fluorescence Microscopy Patch-Fed Rod Antenna patchable patchable patchable patchable patchable Patchable Control Store Patchbay patchboard patchboard

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