1 MCQs in ENT for NEET PG
A 28-year-old man presents with sudden-onset conductive hearing loss following a motor vehicle accident with head trauma. Otoscopy shows an intact tympanic membrane with normal appearance. Tympanometry reveals the pattern marked **A** in the diagram, with peak compliance of 2.4 mL at 0 daPa. Acoustic reflex testing shows absent responses bilaterally when the probe is placed in the affected ear. Which of the following best explains the pathophysiology of this tympanometric finding?
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