Prospective comparison of capillary and venous brain biomarker S100B : Capillary samples have large inter-sample variation and poor correlation with venous samples
Background: Guidelines for the emergency management of mild traumatic brain injury have been used for over a decade and are considered safe. However, they recommend computerized tomography for at least half of these patients. The Scandinavian Neurotrauma Committee guideline uses serum S100B protein level to rule out intracranial hemorrhage. Analysis of capillary serum S100B protein level has not y