Lactate has been know as one of the prognostic factors determining the outocome of the patient with a head injuries and its relation wiith the cerebral parenchymal damage that is seen on the CT-Scan. Conducting a cross sectional study, we examined the arterial lactate levels of 30 head-injured patients in January-May 2008 who, after hawing a CT-Scan admitted to the emergency room at Hasan Sadik…