... among children.[ 3,4 ] In Ontario, an increase from 0.8 to 9.6 cannabis-poisoning-related ED visits per 100 000 ED ... and very dangerous amounts of THC in the bloodstream.[ 8,9 ] Children with exposure to THC often present to care with ... Patients’ ages ranged from 2 months to 17 years; 44.9% were born female, 48.3% were born male, and 6.8% did not ...