Poisoning:

Poisoning  is a common medical emergency  in childhood. In children under 5 years of  age essentially all poisoning are accidental. Nearly 75 per  cent  of  all poisoning  episodes involve  ingestion of substance which are nontoxic or have mild toxicity.  

A  poison  is any  substance that when  ingested, inhaled or absorbed even  in relatively small amounts can cause damage to a structure or disturbance of body function by  its chemical action. 

Poisoning is defined as a morbid condition  caused by the  ingestion  of a  toxic substance. 

Common Clinical Manifestation 

Gastrointestinal Disturbances: Nausea, vomiting, anorexia, abdominal pain, and diarrhoea. 

Respiratory and Circulatory Symptoms: possible unexplained cyanosis, shock, and collapse. 

Central Nervous System:  lethargy, sudden  loss of consciousness and convulsions, dizziness,  stupor, coma.