Drug screening, also known as drug testing, is the analysis of biological specimens such as urine, hair, sweat, or oral fluid/saliva to detect the presence of drugs and their metabolites in the body. This process helps determine if an individual has used drugs recently or in the past. Employers use drug screening to ensure a safe and productive work environment. https://www.marketwebjournal.com/drug-screening-growth-and-size-analysis-share-trends-demand-forecast/