A comparison of the effective inhalation detector with GC in alcoholism in Khorasan Razavi Legal Medicine Center

According to Article No: 174 of Islamic Punishment Law, alcoholic consumption is a crime and limit law must be excuted. The detection of alcoholic consumption in our countery is very important. Blood alcohol level searches in forensic medicine laboratories by tow 1) Gas choromatography 2) Respiratory alcohol detector but the efficaciy of these methods hasn’t exactly compared yet in Iran procedure: In this search 432 doubtful cases that reffered to Khorasan forensic medicine lab were tested. Both methods were done 1) Standard Gas Choromatography and 2) Respiratory Alcohol Detector Respiratory Alcohol Detector test was negative in 51% cases and is positive in 49% when Gas Choromatography was negative in 40% and positive in 60%. In all cases which testing process was positive on Resipiratory Alcohol Detector, in Standard Gas Choromatography was positive too. The mean alcoholic concentration (MAC) Respiratory Alcohol Detectore is 40.9110.17 and this index in Gas Choromatography is 41.1210.96 The sensitivity of Respiratory Alcohol Detector in comparison with Gas Choromatography was 80% and the speciality was 100%. Therefore, there weren’t any false positive cases in this method but 14.6% were false negative that must be pay attention for interpretation of negative results.