Clinical Audiology: Hearing assessment

A small hole in the tympanic membrane causes hearing loss at ………. .

a). all frequencies

b). high frequencies

c). low frequencies

d). mid frequencies

Clinical Audiology: Hearing assessment

Ear-canal atresia could result in hearing loss of ………. .

a). 20 dB 
b). 20 to 30 dB
c). 30 to 35 dB
d). 55 to 70 dB
e). > 70 dB