Prior to<unk>  (BLUE-Protocol)
Obstructive shock - Tamponade or pneumothorax on initial ultrasound
Cardiogenic shock - B-profile on itial ultrasound
With<unk> 
Hypovolemic shock - Improvement after IVF
Septic shock - B-profile and continued failure after IVF
FALLS protocol
STOPP/START criteria
PERC rule
ADDIE system
Pediatric assessment triangle
Combat triage
ACEP clinical policies
Labs Checklist