Day 4 is better than day 3 for a single patch test reading
- 1 June 1996
- journal article
- Published by Wiley in Contact Dermatitis
- Vol. 34 (6), 402-404
- https://doi.org/10.1111/j.1600-0536.1996.tb02241.x
Abstract
Readings were performed on day (D) 2, D3 and D4 after application of patch tests in 88 patients. 90 patch test reactions in 49 patients were interpreted as allergic and of past or present relevance. A single D2 reading detected 58 of the allergic reactions with 32 false-negatives and 23 false-positives. A single D3 reading detected 77 allergic reactions, with 13 false-negatives and 17 false-positives. A single D4 reading detected 85 allergic reactions, with 5 false-negatives and 9 false-positives. Therefore, if only a single reading is feasible, it is better performed on D4 than on D3.Keywords
This publication has 8 references indexed in Scilit:
- Reading patch tests on day 7Contact Dermatitis, 1995
- Patch test reading: a comparison between 2 application methodsContact Dermatitis, 1994
- Epidemiological survey of standard series patch test results and observations on day 2 and day 4 readingsContact Dermatitis, 1991
- Delayed patch test reactions at days 7 and 9Contact Dermatitis, 1989
- The case for patch test readings beyond day 2: Notes from the lost and found departmentJournal of the American Academy of Dermatology, 1988
- WHEN TO READ THE PATCH TEST?International Journal of Dermatology, 1979
- Day 7 (D7) patch test reading ‐ valuable or not?Contact Dermatitis, 1978
- The Patch TestJAMA, 1967