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Comparison of A1‐test and Finn chamber test
Author(s) -
Peltonen Leena
Publication year - 1981
Publication title -
contact dermatitis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 96
eISSN - 1600-0536
pISSN - 0105-1873
DOI - 10.1111/j.1600-0536.1981.tb04041.x
Subject(s) - benzalkonium chloride , patch test , test (biology) , skin test , contact dermatitis , surgery , allergy , dermatology , medicine , chemistry , chromatography , pathology , immunology , paleontology , tuberculosis , biology
A comparison of the Al‐test and the chamber test was made by performing epicutaneous tests simultaneously with both methods in symmetrical sites on the upper back. Irritant reactions were provoked with 1.5% benzalkonium chloride on 90 patients. Allergic reactions were studied with 10 allergens on 510 patients: 243 of them gave positive reactions to one or more of the test substances. It was found that the results obtained by these methods were about the same when the Al‐test was fixed with nonporous occlusive plaster (Leukoplast). By fixing the Al‐test units like the chambers with a porous tape (Scanpor), the chamber test produced more irritant and allergic reactions than the A1‐test.