What Does Employment Drug Screening Detect for Cannabis?
Employment drug screenings are designed to detect the presence of various substances, including cannabis. These tests can identify both recent and past use of the drug. The methods used include urine, blood, saliva, and hair tests.
How Do Drug Screenings Work?
Urine tests are the most common method, detecting cannabis metabolites for up to 30 days after use. Blood tests can detect recent use, up to 12 hours after ingestion. Saliva tests are less common but can identify recent use within the past 24 hours. Hair tests provide a longer detection window, up to 90 days.
How Long Does Cannabis Stay in Your System for Employment Screening?
What Does the Test Look For?
The screenings look for THC (tetrahydrocannabinol), the primary psychoactive compound in cannabis. It's important to note that some over-the-counter products may contain THC, which could lead to a positive result.