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Cotinine Test

Meaning

A Cotinine Test is a precise biochemical assay used to detect and quantify the presence of cotinine, the primary metabolite of nicotine, in a biological specimen such as urine, saliva, or blood. Since cotinine has a significantly longer half-life than nicotine itself, it serves as a reliable and sensitive biomarker for recent nicotine exposure from tobacco products, vaping, or second-hand smoke. Clinically, this test provides objective data on smoking status or environmental exposure, which is relevant because nicotine profoundly impacts cardiovascular and endocrine function. Understanding exposure is a critical step in a personalized wellness strategy.