Answers:
All of the following are common genetic causes of hearing loss except...
A) Usher's Syndrome
B) Alport's Syndrome
C) Waardenburg's Syndrome
D) Connexin 26 mutations
E) 2 of the above
F) All of the above
MC Questions:
By --- months, a child should be startled by loud noises and at --- months a child should respond to their name.
A) Usher's Syndrome
B) Alport's Syndrome
C) Waardenburg's Syndrome
D) Connexin 26 mutations
E) 2 of the above
F) All of the above
Connexin 26 gene mutations account fro 30-50% of all congenital hearing loss. Alport's, Waardenburg's and Usher's are all syndromes associated with SNHL.
Name four risk factors for neonatal hearing impairment.
BW<1500gm, congenital craniofacial anomalies, in utero infections, hyperbilirubinemia requiring transfusion, Apgar less than 5 / 7, mechanical ventilation longer than 5 days, head trauma, exposure to ototoxic agents.
By --- months, a child should be startled by loud noises and at --- months a child should respond to their name.
A) 3, 6
B)3, 9
C) 3, 12
D)6, 9
E) 6, 12
F) 9, 12
Free Response Question:
Name some of the key features of immune-mediated SNHL.
Quick Facts:
Ototoxic Drugs
-Salicylates
-Aminoglycosides
-Erythromycin
-Cis-platinum
-Loop diuretics
Common Noise Levels:
-Jet takeoff = 140db
-Rock concert = 110-120
-Diesel locomotive = 100db
-Lawnmower = 90db
-Average ICU = 70-77db
-Conversation = 60db
-Whisper = 30-40db
B)3, 9
C) 3, 12
D)6, 9
E) 6, 12
F) 9, 12
Free Response Question:
Name some of the key features of immune-mediated SNHL.
Quick Facts:
Ototoxic Drugs
-Salicylates
-Aminoglycosides
-Erythromycin
-Cis-platinum
-Loop diuretics
Common Noise Levels:
-Jet takeoff = 140db
-Rock concert = 110-120
-Diesel locomotive = 100db
-Lawnmower = 90db
-Average ICU = 70-77db
-Conversation = 60db
-Whisper = 30-40db
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