Parent drug (THC):  The psychoactive compound in cannabis. Metabolites tested in urine: 11-nor-9-carboxy-THC (THC-COOH)  → the primary...

Feature Rapid Hair Test (Immunoassay Screen) Lab-Based EtG Hair Test (LC/MS/MS or GC/MS Confirmation) Purpose Quick, on-site screening to...

When a person drinks ethanol (alcohol), the body breaks it down in the liver. Most is metabolized to acetaldehyde → acetic acid, but some...

⚠️ The Risk of Misinterpretation Courts, employers, licensing boards, and child-welfare agencies often rely on drug and alcohol testing...