How do you test for nocatine?

Nicotine testing can be conducted using various methods, including urine, saliva, blood, and hair tests. The most common method is a urine test, which detects nicotine and its metabolites, such as cotinine, typically within a few days after use. Saliva tests can provide results within minutes and are also effective for recent use. Blood tests are more invasive but can provide accurate measurements of nicotine levels at the time of testing.