Aggregate evidence quality	C
Benefits	Limitation of exposure to risks related to radiation and possible need for sedation, as well as reduction in costs
Risk, harm, cost	Potential delayed identification of injury progression Costs of observation over CT scan
Benefit-harm assessment	Benefits outweigh harms
Values judgments	None
Intentional vagueness	Clinically significant intracranial injury based on clinical judgment
Role of patient preference	None
Exclusion	Patients with clinically relevant intracranial injury on initial CT
Strength	Weak recommendation
Difference of opinion	None