how to cite this article: khosroshahi n, alizadeh p, khosravi m, salamati p, kamrani k. spinal fluid lactate dehydrogenase level differentiates between structural and metabolic etiologies of altered mental status in children. iran j child neurol. 2015 winter;9(1):31-36. abstract objective altered mental status is a common cause of intensive care unit admission in children. differentiating struc...