Hemlock (Conium Maculatum) is a poisonous plant. Ingestion by mistake can cause central nervous system depression, respiratory failure, acute rhabdomyolysis, acute renal failure or even death. The treatment is supportive. In this case report, we present a three year-old girl who was brought to an emergency department with respiratory arrest, after ingestion of hemlock. Cardiopulmonary resuscitation was performed for 5 minutes and then she was transferred to our pediatric intensive care unit as in intubated state. Whole bowel irrigation was suggested by National Poison Counselling Center and 125 ml Golytely was used for bowel irrigation in every 15 minutes via nasogastric tube, until rectal drainage became clear. Therapeutic Plasma Exchange was performed once so as to remove toxic metabolites. Liver and renal function tests were closely monitored. The patient was intubated for 6 days because of aspiration pneumoniae and then extubated. She was discharged on day 10 with no sequelae. This case was reported to emphasize that some plants can be mistaken for commonly used vegetables because they look similar and can cause serious poisoning and can even cause death.

Keywords: Conium maculatum, Hemlock, Therapeutic plasma exchange