Fat stranding, free fluid, free air
Train your eyes to look between bowel loops
Use lung windows to assess for subtle free air/pneumoperitoneum
Coronal view good for:
Transverse process fractures
Tracing sacrum and pubic rami
Correlation for possible spinal fractures
Look for fat stranding, edema, hematoma to increase sensitivity for acute fractures
Arterial
Trace the aorta and branch vessels, assessing for wall thickening, surrounding fat stranding, or acute aortic syndrome
Venous
Trace the deep veins, assessing for DVT
Know the history/mechanism of trauma
Soft tissue contusions can highlight the points of impact
Assess underlying structures for injury (bowel/mesenteric contusion, vascular injury, etc.)
Zoomed out, bigger picture view will increase sensitivity
Compare bowel loops to assess for enhancement, thickening, dilatation
More mesenteric fat to compare for fat stranding
Simple versus closed loop physiology (look for multiple transition points!)
Complete/high grade vs incomplete/low grade (ability of material to pass)
Transition point (can hedge if there is a suspected transition point)
Signs of ischemia (e.g. thickening, fluid, pneumatosis)