One week after taking a 4-hour flight home from a hunting trip, an 18-year-old man presents with hearing loss and tinnitus. on examination, his external auditory canal and tympanic membranes appear normal. results of a rinne test are normal bilaterally, and a weber test is localized to the right side. an audiogram demonstrates a moderate high-frequency sensorineural hearing loss in the left ear. what is the most likely cause of the hearing change?

The most likely cause of the hearing change is a long exposure to high-frequency noise during a 4-hour flight.

Explanation:

The most common high-frequency sensorineural hearing loss is normally caused by noise exposure or aging, and often both. In this condition loud noises like a plane taking off or explosion damage the hair cells at the base of the cochlea.

The man experiencing tinnitus and hearing loss after the four-hour flight and as per the audiogram demonstration, the cause of the hearing change is most likely due to the exposure of the high-frequency sound or noise.

Thus, the correct answer is a long exposure to high-frequency noise during a 4-hour flight.

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answer:

Bones of the leg, ankle and foot: There are 62 lower extremity bones. They consist of 10 hip and leg, 14 ankle and 38 foot bones. The 10 hip and leg bones are the innominate or hip bone (fusion of the ilium, ischium, and pubis), femur, tibia, fibula, and patella (kneecap) on each side.

Explanation:

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