preparing for a shock (Part II)
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Sometimes the audiologist will want to test how the person's inner ear is working with a bone conduction test. This test helps to determine if the person has a conductive, a sensorineural, or a mixed loss.
Here is an example of a conductive loss. Note how with air conduction the person has a hearing loss. However, the bone conduction results show that the sensorineural pathways are in good working order.
The Speech Banana
The picture symbols represent the different sounds at that particular frequency and decibel level. For example, leaves rustling is very quiet (about 5 dB) and slightly-higher pitched (2000 Hz). However, a semi truck is very loud (100 dB) and lower-pitched (125 Hz).In the middle across the frequency range are the speech sounds. They call this the "Speech Banana" because, as you can see, it looks like a banana when you draw a line around them,
The reason why the speech banana is so important to be aware of is because this, in addition to the audiogram, will give you even more specific insight into what the child can and cannot hear.
For those children who are profoundly deaf or who are moderate-to-severe in their hearing loss, they will probably not be able to hear any of those sounds of speech unaided. (They might have a hearing loss that is good in some frequencies and not in others.)
For children who have a mild to moderate hearing loss, they probably will be able to hear some sounds of speech and not others unaided. Take a look at their audiogram as well and think about what they are missing.
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