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Otosclerosis
A-Deafness is the predominant symptom it is usually bilateral in 80% and it is
conductive type involve low frequency at begening
B-leads to sensori neural hearing loss
C-Carhart notch can be found on tympanometry
D-patient will never presented with Tinnitus and vertigo
E-Schwartz's sign is diagnostic and seen in all cases of otosclerosis
Clear

Sensorineural deafness caused by
A-Mumps
B- Tympanosclerosis
C-last stage of otosclerosis
D-Congenital ear atresia
E-Incudo-stapedial joint fixation

One of the following test has no benefit in the diagnosis of sensorineural deafness
A-Tympanometry
B-Otoacaustic emission
C-РТА
D-Auditory brainstem response(ABR)
E-Tuning fork test

Otosclerosis
A-The disease never invade the cochlea
B-normal bone replaced by new spongy osteoid bone
C- the commonest site 80% is the anterior margin of round window
D-Movement of stapes not affected by the disease process
E-Pregnancy is a protective process

Degree of deafness

A-Moderate degree (sound detected from between 25 -39 dB).

B-Severe degreesound detected from between 40 -69dB)

C-Mild degree sound detected from between 40 - 69 dB

D-( Severe degree (sound detected above 90 dB)

E-Mild degree (sound detected from between 25 - 39 dB).

Presbycusis

A-Autosomal dominant
B-disease defect is usually in the cochlear hair cells
C- affects first the lower tones
D- is one form of mixed hearing
E-loss is usually reversible

Moderate sensorineural hearing loss

A-Hearing threshold is from 56 to 70
B-Weber test will lateralize to better side
C-Rinne test is negative
D- Surgical treatment usually solve the problem
E-Child may detect loud sounds in the environment, but will not hear normal conversational speech