In the context of audiology, what does "AC > BC" signify?

Prepare for the Leik HEENT Exam. Study with flashcards and multiple-choice questions, featuring hints and explanations for each question. Elevate your understanding and get ready to ace your test!

In audiology, the notation "AC > BC" refers to the results of air conduction (AC) hearing tests being greater than bone conduction (BC) hearing tests. This finding typically indicates that the individual's hearing is functioning normally.

In a normal hearing scenario, both air conduction and bone conduction thresholds would be within the normal range, with air conduction thresholds being better than bone conduction thresholds. This means that sound waves conducted through the air (AC) are heard better than sound waves that directly stimulate the inner ear through bone conduction, showing that the outer and middle ear are effectively transmitting sound to the inner ear.

This distinction is crucial in diagnosing hearing loss. In cases of conductive hearing loss, bone conduction would often show better hearing abilities than air conduction due to issues in the outer or middle ear that prevent sound from being conducted properly through the air. Sensorineural hearing loss typically exhibits a reduction in both air conduction and bone conduction, with both values showing a similar degree of loss. Mixed hearing loss is characterized by elements of both conductive and sensorineural hearing loss affecting air and bone conduction differently.

Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy