Drug Testing Guides

Does Adderall Show Up on a Drug Test?
How Adderall shows up on drug tests, how long it is detectable, and how to handle valid prescriptions. Read more...
Does CBD Show Up on a Drug Test? What About Delta-8?
Why pure CBD should not test positive, why many CBD products still do, and why delta-8 THC shows up as marijuana. Read more...
Does K2 (Spice) Show Up on a Drug Test?
Why K2 and Spice are missed by THC tests, which tests detect them, and the limits of synthetic cannabinoid testing. Read more...
Does Gabapentin Show Up on a Drug Test?
Why standard panels miss gabapentin, which tests detect it, and why treatment programs are adding it. Read more...
Does Kratom Show Up on a Drug Test?
Why standard panels miss kratom, which tests detect it, and how long it stays in urine. Read more...
How to Spot a Diluted, Fake or Tampered Urine Sample
The most common ways urine samples are faked or diluted, and how temperature strips, adulterant checks and good collection practices catch them. Read more...
Drug Test Cutoff Levels Explained: What ng/mL Means
What cutoff levels are, how to read codes like THC50 and OPI300, and how cutoffs affect what a test detects. Read more...
What Does CLIA Waived Mean? CLIA Waived vs. Forensic Use Drug Tests
What CLIA waived means, when a Certificate of Waiver is needed, and how CLIA waived tests differ from forensic use only tests. Read more...
How to Read a Drug Test Cup: Faint Lines, Positives and Invalid Results
A step-by-step guide to reading an instant urine drug test cup, including faint lines, invalid results and the temperature strip. Read more...
What Is 7-OH (7-Hydroxymitragynine)? A Guide for Testers
What 7-OH is, how it differs from kratom leaf, why treatment and recovery programs are concerned, and how to test for it. Read more...
What Is an EtG Test? How EtG Alcohol Testing Works
How EtG urine tests detect recent drinking, how long EtG stays in urine, what cutoff levels mean, and how to avoid incidental positives. Read more...
How Long Do Drugs Stay in Your Urine? Detection Times Chart
A chart of approximate urine detection windows for common substances, and the factors that change how long a drug shows up. Read more...