الفهرس 
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Abstract
The current study was done to evaluate cases of acute carbon monoxide poisoning and comparison between different groups according to the level of carbon monoxide level (COHb%) in the blood provided that the time passed since exposure to arrival to emergency room in El-Minia poison Control Center and Ain Shams Poison control center not more than two hours.
Each person of the study evaluated clinically by taking careful full medical history and systemic examination and neurologically evaluated by Glasco coma scale. The Aretrial blood gases analysis was performed; other laboratory parameters as Random blood sugar, CPK, CPK-MB, LDH, SGOT, SGPT, Urea, and Creatinine were done. After that Electrocardiographic recording was done for every patient on admission and Brain Computed tomography (C.T. scan) was done to every patient admitted to PCC in El-Minia or Ain Shams University.
The cases under study classified into three different groups according to the CO Hb level; group I (Mild toxicity) the level of CO-Hb% is 10-20%, group II (Moderate toxicity) the level of CO-Hb% is 20-40%, group III ( severe toxicity) the level of CO-Hb% is>40%, the persons were chosen to have no past history of neurological, cardiovascular, gastrointestinal, respiratory or renal disorders. Those with risk factors such as hypertension, diabetes and smoking were also excluded from this study their effects.