Inclusion Criteria:  History of exposure or intake of Aluminum phosphide. Clinical picture of Acute Aluminum phosphide poisoning including severe vomiting, hypotension, abdominal pain, cardio-pulmonary distress. Cases of the age of 15 to 45 years old  Exclusion Criteria:  - 1. Cases with an unclear history. 2. History of co-morbidities or systemic diseases because of the possibility of misleading laboratory results.  3. History of co-ingestion of drugs or another poison.