Answers:
What is the most common cause of SNHL?
A) Congenital
B) Intense Noise Exposure
C) Ototoxic medications
D) Presbycusis
E) HIV related hearing loss
All of the listed answers are causes of SNHL, however presbycusis (age related hearing loss) is the most common cause of SNHL.
The intensity of sound is signaled to the brain by what three mechanisms?
1. The amount of neural activity in individual neurons.
2. The number of neurons active.
3. Specific neurons which are activated.
MC Questions:
SNHL along with thyroid abnormalities most likely signifies what syndromic form of hearing loss?
A) Jervell Syndrome
B) Alport Syndrome
C) Waardenburg Syndrome
D) Usher Syndrome
E) Pendred Syndrome
A) Congenital
B) Intense Noise Exposure
C) Ototoxic medications
D) Presbycusis
E) HIV related hearing loss
All of the listed answers are causes of SNHL, however presbycusis (age related hearing loss) is the most common cause of SNHL.
The intensity of sound is signaled to the brain by what three mechanisms?
1. The amount of neural activity in individual neurons.
2. The number of neurons active.
3. Specific neurons which are activated.
MC Questions:
SNHL along with thyroid abnormalities most likely signifies what syndromic form of hearing loss?
A) Jervell Syndrome
B) Alport Syndrome
C) Waardenburg Syndrome
D) Usher Syndrome
E) Pendred Syndrome
Free Response Question:
What is the maximum average dB exposure allowed for workers over an 8 hour period that does not require ear protection?
Quick Facts:
SNHL Diagnosis
-Look for retraction pockets of pars flaccida/pars tensa.
-Unilateral serous effusion in adults should prompt scoping patient to assess for
neoplasms.
-Tuning fork exams can be useful.
-Rinne shows BC>AC when CHL greater than 30db-5db
difference in hearing needed for weber test
-Audiogram should always be performed.
-CT scans can be used to determine the caliber of the EAC and for detection of bone erosion for cholesteatoma and chronic OM.
-MRI is better for detecting retrocochlear pathology.
What is the maximum average dB exposure allowed for workers over an 8 hour period that does not require ear protection?
Quick Facts:
SNHL Diagnosis
-Look for retraction pockets of pars flaccida/pars tensa.
-Unilateral serous effusion in adults should prompt scoping patient to assess for
neoplasms.
-Tuning fork exams can be useful.
-Rinne shows BC>AC when CHL greater than 30db-5db
difference in hearing needed for weber test
-Audiogram should always be performed.
-CT scans can be used to determine the caliber of the EAC and for detection of bone erosion for cholesteatoma and chronic OM.
-MRI is better for detecting retrocochlear pathology.
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