This test is a qualitative screen for lysergic acid diethylamide (LSD, or Acid) in a urine sample. LSD is a powerful hallucinogenic drug that affects serotonin regulation in the brain, leading to altered sensory perception, mood, and motor control. It is typically taken orally, and side effects can range from physical symptoms like dizziness and nausea to psychological distress such as panic or depression. LSD is generally detectable in urine for up to several days, though this timeframe varies based on the dosage and individual factors.