Audiograms
What is the symbol for right unmasked air conduction?
O
What type of words are used for finding SRT?
Spondees
Which part of the ear does bone conduction test?
The inner ear.
Which ear is making noise applied to?
The non-test ear or
the ear with better thresholds or
the ear you need to take out of the equation so you can test the other ear in isolation
The air conduction transducers are?
Inserts, headphones, and speakers. (Give the points if they only answered inserts and headphones)
Amplitude (loudness) is plotted on which axis?
The Y (vertical) axis
How do you find your presentation level for word recognition testing (WRS)?
SRT + 40 dB
What is the purpose of bone conduction testing?
To determine the type of hearing loss.
The masked air conduction symbol for the left ear is
a square
The first frequency we test is
1000 Hz
The decibel range for normal hearing is?
-10 to 25 dB
What are the main two speech tests given for a comprehensive hearing evaluation?
Speech Recognition Threshold (SRT) and Word Recognition Score (WRS)
The three types of hearing loss are
Conductive, Sensorineural, and Mixed
What is an air-bone gap?
A difference between air and bone of 15 or more dB
What thresholds do we use to determine pure tone average?
500, 1000, and 2000 Hz
What frequency range do we test for pure tone audiometry?
250-8000 Hz
The SRT and the PTA (pure tone average) should be within _____ dB of each other.
10 dB
What type of hearing loss would a problem with the outer/middle ear cause?
Conductive hearing loss
The interaural attenuation of inserts is
60 dB
The purpose of pure tone air conduction testing is to determine?
the severity and configuration of a hearing loss
The decibel range for severe loss is
71-90 dB
When would you use Speech Awareness Threshold (SAT) instead of Speech Recognition Threshold (SRT)?
A young child that cannot repeat words or
A developmentally disabled patient who cannot repeat words or
A patient with significant hearing loss that can hear speech but not recognize words or
When there is a language barrier
What type of hearing loss has bone conduction and air conduction thresholds in the hearing loss range with no air bone gap?
Sensorineural hearing loss
Why would we need masking?
To take the better/non-test ear out of the equation so that the better ear can't contribute to the bad ear thresholds
to avoid crossover
for an asymmetrical hearing loss
When do interoctaves needs to be tested?
When there is a difference of thresholds between octaves of 20 or more dB