Anoxic encephalopathy can also be caused by outside forces that have caused trauma to the brain or head of the patient. This type of occurrence might be the result of an injury during a sports game or that of a vehicular accident. Anoxic encephalopathy has a wide variety of causation and manifestations. However, there are some case in which the anoxic encephalopathy can be prevented or if it has occurred, it can be reversed. However, because there are a number of different types of Encephalopathy, the initial detection of anoxic encephalopathy might span a variety of tests. Scans of the brain and blood work can help detect an instance of anoxic encephalopathy.