Causes of Altered Level of Consciousness GCS < 7 - Differential Diagnosis Algorithm Brain Involvement - Hemispheric • Hemorrhage • Traumatic • Ischemia/Infarction • Neoplastic Abscess • Skull fracture • Subdural hematoma • Intracranial Bleeding Brain Involvement - Brain Stem • Hemorrhage • Traumatic • Ischemia / Infarction • Neoplastic Abscess • Herniation • Brain stem Lesion Brain Involvement - Vascular • Hypertensive encephalopathy • Vasculitis • TTP • DIC • Hypoxemia • Multiple emboli Brain Involvement - Infection • Meningitis • Encephalitis Brain Involvement - Other • Trauma / Concussion • Post-ictal Systemic - Excesses • Liver/Renal Failure • Carbon Dioxide Narcosis • Metabolic Acidosis • Hypernatremia • Hypercalcemia • Hypermagnesemia • Hyperthermia • Thyroid Storm Systemic - Deficiencies • Hypoxemia • Hypoglycemia • B12/Thiamine deficiency • Hyponatremia • Hypocalcemia • Hypomagnesemia • Hypothermia • Myxedema Coma Systemic - Drugs/Toxins • Alcohols • Barbituates • Tranquilizers • Other #Altered #comatose #aloc #Differential #Diagnosis #Algorithm #Causes