Noise-Induced Hearing Loss — Flashcards

Flashcard 1: _____ has been tried to hasten the maturity of active focus of otosclerosis and arrest further cochlear loss.

Answer: Sodium fluoride

Flashcard 2: Hearing loss is usually _____ type in otitic barotrauma

Answer: conductive

Flashcard 3: Menieres Disease presents with a _____lateral sensorineural type of hearing loss

Answer: uni

Flashcard 4: Ear defects involving Treacher-Collins syndrome lead to bilateral _____ hearing loss

Answer: conductive

Flashcard 5: SOM/OME presents as _____lateral, painless, fluctuating, and conductive hearing loss not more than 40 dB.

Answer: bi

Flashcard 6: In impedance audiometry (tympanometry), a **flat curve** (Type B tympanogram) is characteristically seen in:

Answer: Serous otitis media (SOM)

Extra: A Type B (flat) tympanogram indicates restricted mobility of the tympanic membrane (reduced compliance) with no discernable peak. **Common causes:** - **Serous otitis media (SOM)** / Otitis media with effusion (OME) - ASOM (stage of effusion) - Adhesive otitis media - Tympanic membrane perforation (presents with high ear canal volume) **Note on Type C:** A tympanogram with a peak **shifted to the negative side** (<-100 daPa) is **Type C**, typically seen in Eustachian tube dysfunction or early stages of SOM.

Flashcard 7: Symptoms are _____ severe compared to signs in furunculosis of ear

Answer: more (less/more)

Flashcard 8: In _____, the fluid is clear hence one can see the structures of the middle ear quite clearly.

Answer: SOM

Flashcard 9: _____ used in mastoid surgery to explore the air cells with one end and to curette the intervening septa and granulations with the other.

Answer: MacEwen’s curette and cell seeker