Please select the option that best describes you:
How long do you apply patch testing before interpreting the results?
The TRUE test recommends 48 hrs, but anywhere from 2-5 days is seen with other allergists/dermatologist, especially with more comprehensive testing.
Answer from: at Academic Institution
In most instances, patches are removed after 48 hours (2 days). This timeframe is specifically chosen to allow sufficient time for the allergen to penetrate the stratum corneum and trigger a T-cell mediated response, while simultaneously reducing the potential for significant skin irritation that c...
Sign In or Register to read more