Abstract
1. Identify the illicit drugs (morphine, cannabinoids, benzodiazepines, barbiturates, tramadol, cocaine, amphetamine, alcohol, synthetic cannabinoids). 2. Identify illicit drug users in patients who admitted in Assiut University Hospitals undergoing emergency operation and their percent among all patients admitted for emergency operation, for proper selection of anaesthetic agents and proper care before, during and after operations. 3. Compare between addict and non addict in using suitable anaesthetic agents and doses - period of anaesthesia- period of recovery- complications. 4. Compare between addict and non addict patients in :( vital signs before, during and after operation by using anaesthetic chart). 5. Identify the importance of using drug abuse detection as a routine lab work before urgent operations.