hearing

Question 1

Presbycusis

Answer 1

aging of the organ of corti base of the choclea
50% of people at 80 and 100% of people at 90

age related hearing loss

Question 2

weber rhine test

Answer 2

rhinne - 512 hz held on mastoid process once patient cannot hear anymore folk is held over the ear . patient should be able to hear ring still

weber . 512 hz on forehead should be able to hear in both ears equally

Question 3

acoustic neuroma ( schawnanoma )

Answer 3

benign tumour of schwan cells
unilateral - bilateral high association with Nurofibromatosis
mass effect on CN VII - sensinoneurinal hearing loss

normal rhinne test
localising weber test to normal ear

Question 4

conductive hearing loss

Answer 4

something inhibiting the passage of sound through he ear canal .

negative rinne. bone louder than air