Drug screening involves testing biological samples—such as urine, saliva, or hair—for the presence of specific substances. Each method offers unique advantages depending on the purpose of the test. Urine tests are commonly used for detecting recent drug use, saliva tests provide quick results for short-term detection, and hair tests offer a longer detection window for up to 90 days. In Leitchfield, KY, Dr. Fulkerson provides these screening services with precision and confidentiality, meeting the needs of employers, individuals, and healthcare providers.