1 MCQs in ENT for NEET PG
A 32-year-old male construction worker presents to the emergency department 2 hours after an industrial explosion with bilateral ear pain, hearing loss, tinnitus, and otorrhagia. Otoscopy reveals bilateral large central tympanic membrane perforations with inverted edges and clotted blood in both external auditory canals. Audiometry is shown in the diagram. The pattern marked **A** demonstrates bilateral mixed hearing loss with a characteristic 4 kHz notch. Which of the following best explains the mechanism of this combined conductive and sensorineural hearing loss in primary blast injury?
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