Hearing Impairment Flashcards
Name the 2 ways to assess hearing.
Clinical (not formal)
Audiometric (obective)
Voice test and tuning fork tests are examples of _________ assessment of hearing.
clinical.
How is hearing tested objectively?
Using pure tone audiometry.
Describe the clinical voice test.
stand 2 feet away -whisper -conversational voice -loud voice If they hear the whisper then we can presume their pure tone threshold is reasonable.
in clinic, how can we effectively mask one ear?
Tragal rubbing
Most of _____ is within 0.5-4 Hz.
speech.
0-20 dBHL = ___________ hearing.
normal.
What would be the quitest sound (dBHL) a person with;
mild hearing loss would hear?
20-40 dBHL
What would be the quitest sound (dBHL) a person with;
moderate hearing loss would hear?
40-70dBHL
What would be the quitest sound (dBHL) a person with;
severe hearing loss would hear?
70-90 dBHL
What would be the quitest sound (dBHL) a person with;
profound hearing loss would hear?
90+ dBHL
Why do we do pure-tone audiometry?
- To determine thresholds across frequency for hearing aid prescription
- Diagnosis of conductive or sensorineural hearing impairment
What is the criteria to have a “Hearing Impairment”?
Mean pure-tone threshold (0.5, 1, 2 & 4 kHz) greater than or equal to 25 dBHL.
If the air-bone gap is not greater than 10 dB, what sort of hearing impairment is this?
Sensorineural
If the air-bone gap is greater than 10dB, what sort of hearing impairment is this?
Conductive or mixed
