Answers:
What is the most common cause of noise induced hearing loss (nonoccupational)
A) Rock Concerts
B) Airplanes
C) Gunfire
D) Lawnmowers
E) Car alarms
B) Airplanes
C) Gunfire
D) Lawnmowers
E) Car alarms
Gunfire produces 140-170 db of noise. The audiogram usually shows a hearing loss in the 4000hz range. Interestingly, a right handed shooter often has left sided hearing loss. The theory is that the right ear is somewhat protected by being tucked into the shoulder while rifle is being aimed/fired.
Name two medication categories that are ototoxic.
-Salicylates
-Aminoglycosides
-Erythromycin
-Cis-platinum
-Loop diuretics
-Aminoglycosides
-Erythromycin
-Cis-platinum
-Loop diuretics
Which of the following is not one of the components in a typical hearing aid?
A) Receiver
B) Volume Control
C) Battery
D) Amplifier
E) Converter
F) Microphone
Free Response Question:
Define:
-Saturation sounds pressure level
-Acoustic Gain
-Output Limiting
-Frequency Gain Response
Quick Facts:
7 types of hearing aids:
-behind the ear
-in the canal
-body aids
-in the ear
-completely in the canal
-contralateral routing of sound/bilateral aids
B) Volume Control
C) Battery
D) Amplifier
E) Converter
F) Microphone
Free Response Question:
Define:
-Saturation sounds pressure level
-Acoustic Gain
-Output Limiting
-Frequency Gain Response
Quick Facts:
7 types of hearing aids:
-behind the ear
-in the canal
-body aids
-in the ear
-completely in the canal
-contralateral routing of sound/bilateral aids
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