Rare for fracture-specific ED immobilization choices
ACEP Level B
Moderate evidence or consistent lower-quality evidence
Often applies to sedation and analgesia guidance
ACEP Level C
Consensus or expert opinion
Common for immobilization choice specifics
Class I recommendation
Benefit clearly outweighs risk
Apply to antibiotics for open fracture conceptually
Class IIa recommendation
Benefit probably outweighs risk
Apply to early ortho follow-up for high-risk 5th metatarsal patterns
Class IIb recommendation
Benefit may outweigh risk
Apply to advanced imaging selection when radiographs equivocal
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