In blast injuries, which early sign is associated with primary overpressure injury to the ear?

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Multiple Choice

In blast injuries, which early sign is associated with primary overpressure injury to the ear?

Primary blast injuries to the ear come from the rapid overpressure wave stressing air-filled spaces, with the tympanic membrane being especially vulnerable. The membrane can rupture almost immediately as the pressure spikes, making its rupture the earliest sign of this barotrauma. Patients often feel sudden ear pain and notice conductive hearing loss, sometimes with bleeding or fluid in the ear. Vision changes, jaw fractures, or fungal infections are not immediate signs of primary otic overpressure—vision changes point to ocular injury, jaw fracture to blunt trauma or skeletal injury, and fungal infections develop later as infections rather than as acute barotrauma signs.

Primary blast injuries to the ear come from the rapid overpressure wave stressing air-filled spaces, with the tympanic membrane being especially vulnerable. The membrane can rupture almost immediately as the pressure spikes, making its rupture the earliest sign of this barotrauma. Patients often feel sudden ear pain and notice conductive hearing loss, sometimes with bleeding or fluid in the ear. Vision changes, jaw fractures, or fungal infections are not immediate signs of primary otic overpressure—vision changes point to ocular injury, jaw fracture to blunt trauma or skeletal injury, and fungal infections develop later as infections rather than as acute barotrauma signs.

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