This test is used to measure the level of cotinine, a metabolite of nicotine, in the blood, urine, or saliva. Cotinine remains in the body longer than nicotine, making it a reliable marker for detecting recent tobacco use or nicotine exposure.
This test is commonly used in clinical settings, smoking cessation programs, workplace screenings, and research studies. It helps differentiate between active smokers, passive exposure, and non-smokers.
The purpose of this test is to: