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Patch tests with potassium dichromate removed after 24 and 48 hours
Author(s) -
Kudzki Edward,
Zakrzewski Zdzislaw,
Prokopczyk Grazyna,
Kozlowska Anna
Publication year - 1976
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.1600-0536.1976.tb03066.x
Subject(s) - potassium dichromate , patch test , patch testing , potassium , medicine , chemistry , nuclear chemistry , toxicology , contact dermatitis , inorganic chemistry , biology , immunology , organic chemistry , allergy
The rate of release in vitro of four potassium dichromate concentrations (0.5, 0.1, 0.05 and 0.01 %) was determined. In the course of 24 h, 90.1–97.5 % was released of the total K 2 Cr 2 O 7 amount in 48 h. Out of 30 patients positive to 0.05 % dichromate when the patch lest was done routinely, 29 were also positive when the patch was removed after 24 h. The effect of the earlier removal of the patch test was also noted in seven other patients, when results of tests with lower dichromate concentrations were taken into account.