Ears

Question 1

Sensorineural hearing loss

Answer 1

Root cause lies in the inner ear (cochlear), vestibulocochlear nerve (cranial nerve VIII), or central processing centers of the brain. Usually can’t be medically or surgically corrected; most common type of permanent hearing loss.

Question 2

Conductive hearing loss

Answer 2

Occurs when sound is not conducted efficiently through the outer ear canal to the eardrum and the tiny bones (ossicles) of the middle ear. Can often be corrected medically or surgically.

Question 3

Presbycusis

Answer 3

Age-related hearing loss. Loss of higher frequencies (more likely to hear vowel sounds than consonants)

Question 4

Weber test in conductive hearing loss

Answer 4

Louder in impaired ear

Question 5

Weber test in sensorimotor hearing loss

Answer 5

Louder in good ear

Question 6

Rinne test in conductive hearing loss

Answer 6

BC = AC or BC > AC

Question 7

Rinne test in sensorineural hearing loss

Answer 7

AC > BC

Question 8

Ototoxic drugs

Answer 8

Aminoglycosides (antibiotics), ASA, NSAIDs, quinine, furosemide

Question 9

Meniere’s disease

Answer 9

A disease of the inner ear associated with tinnitus, hearing loss, and vertigo

Question 10

Tympanosclerosis

Answer 10

Scarring of the eardrum