Will a nicotine patch affect a swab test?

A nicotine patch may affect a swab test, as these tests are designed to detect the presence of nicotine and its metabolites in saliva. If you are using a nicotine patch, it is likely that the test will show a positive result for nicotine. However, the extent of the impact can vary depending on the timing of the patch application and the sensitivity of the test. If you are concerned about testing positive, it's best to inform the testing administrator about your use of a nicotine patch.