Clinical judgment alone was not very accurate in predicting serious injury compared with whole-body CT.  But patients with a completely normal exam may be an exception.

NEXUS was not as sensitive in patients older than 65.  These people need imaging.

A seatbelt contusion on a child's abdomen is a marker of significant and sometimes subtle abdominal or spine injury.

MRI rarely changes management in patients with negative CT and persistent neck pain. 

One of the unintended consequences of pan-scanning is lots of incidental findings.

Kids with post-traumatic seizure need a head CT.  Those with a normal head CT may be safely discharged and have very low risk of recurrent seizures.

Hypotension or hypoxia increase mortality in head-injured patients, and both together are even worse.

Etomidate and ketamine were equally safe when used as trauma airway induction agents.

Proper application of the CCHR could have reduced CT utilization by 37% without missing any injuries requiring surgical intervention.

If hypoxia is the cause of traumatic arrest, the prognosis is better than expected.