Assessment of breath carbon monoxide and salivary cotinine levels among smokers and non-smokers.

Abstract

Background and Objectives: Tobacco kills up to half of its users which estimate to more than 8 million people each year. Cotinine, the major metabolite of nicotine is generally regarded as the best biomarker for monitoring tobacco exposure in both actively and passively exposed individuals but it is time consuming, expensive and time consuming. Exhaled CO is a useful and validated marker for identifying smokers because high levels of Carbon Monoxide (CO) are produced during tobacco combustion. As a result, the study's goal was to see how smoking intensity affected breath carbon monoxide (BCO) levels, salivary cotinine levels and determine reliable CO cut-off levels for smokers and non-smokers.