Observational Study of THC Concentrations in Acute Cannabis-induced CNS Depression

This is a multi-center, prospective, cross-sectional observational study to determine the concentrations of tetrahydrocannabinol (THC) and its metabolites (and/or other cannabinoids) in the plasma of pediatric patients admitted to emergency departments with acute cannabis-induced CNS depression. .The study will explore the relationships between these concentrations and parameters such as demographics, symptom severity, time to symptom resolution, and clinical outcomes. Samples will be collected as part of standard clinical procedure without requiring study participants to spend additional time in the hospital.