Blood test may spare kids from unneeded radiation after head bumps

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Age ≤ 16 years Therapeutic management within 3 hours after TBI GCS score of 15 classically requiring hospitalization and/or CCT-scan as per SFP recommendations (Lorton et al., 2014). These criteria are: * For children aged under 2 years (CCT-scan or hospitalization recommended according to physician's evaluation): * Parietal or occipital scalp hematoma, * Loss of consciousness for more than 5 seconds, * Trauma due to serious accident (road accident with passenger ejected from vehicle or death of another person or rollover; pedestrian hit by a moving vehicle; cyclist not wearing a helmet; fall from a height greater than 0.9 meter), * Abnormal behavior in the opinion of parents. * For children 2 years and older (CCT-scan or hospitalization recommended according to physician's evaluation): * Loss of consciousness at time of accident, * Vomiting, * Trauma due to serious accident (road accident with passenger ejected from vehicle or death of another person or rollover; pedestrian hit by a moving vehicle; cyclist not wearing a helmet; fall from a height greater than 1.5 meter), * Severe headache. Exclusion Criteria: * Patient already enrolled in another therapeutic trial with drug administration Down syndrome Melanoma Refusal of child Refusal of parents or legal guardian Trauma more than 3 hours earlier GCS score of 13 or 14, or signs of skull fracture or lesions of the skull base (CCT-scan recommended) Children with TBI not requiring hospitalization and/or CCT-scan as per SFP recommendations (Lorton et al., 2014). This group is defined by the absence of the following criteria: * GCS score different from 15, * Age \< 3 months, * Seriousness of accident: * road accident with passenger ejected from vehicle or death of another person or rollover, * pedestrian hit by a moving vehicle, * cyclist not wearing a helmet. * Fall: * of more than 0.9 m before age 2 years, * of more than 1.5 m after age 2 years. * Loss of consciousness for 5 seconds or more, * Inconsolable crying, * Agitation, drowsiness, feeling "slowed down", obnubilation, * Vomiting or headache, * Facial or cranial hematoma, * Otorrhea, rhinorrhea, * Child under 2 years old, * Loss of consciousness for less than 5 seconds, * Unusual behaviour, * Concern of family members