• Temporal bone fractures with or without ear drainage.
• Persistent HL > 72 hours after acoustic trauma, or inability to perform duties due to perceived HL.
• TM perforation that has not resolved 8 weeks after injury.
• Vertigo that does not resolve within 7 days after injury, even if episodic.
• Clear ear drainage.
• Persistent discolored ear drainage that does not resolve after 3 days of topical antibiotic steroid combination drop therapy.
• Facial nerve paralysis.
• On screening audiogram if ANY of these conditions are met:
  • Pure tone threshold average across 500, 1000, and 2000 Hz that is greater than 30 dB
  • Or any absolute hearing threshold greater than 35 dB at 500, 1000, and 2000 Hz*
  • Or any absolute hearing threshold greater than 45 dB at 3000 Hz or 55dB at 4000 Hz*

*Interpretation of the post-traumatic audiogram is facilitated by review of a baseline audiogram, if available.