Answers:
What branch of the external carotid artery is most likely to feed a carotid body tumor?
A) Ascending Pharyngeal
B) Lingual
C) Facial
D) Internal Maxillary
E) Superior Thyroid
MC Questions:
Fluid lights up on --- and is dark on ---- MRIs.
A) T1; T2 weighted
B) T2; T1 weighted
A) Ascending Pharyngeal
B) Lingual
C) Facial
D) Internal Maxillary
E) Superior Thyroid
The ascending pharyngeal is the artery that supplies carotid body tumors.
What is the likely causes of this patient's hearing loss?
Noise exposure or occupational hearing loss. This audiogram demonstrates the classic "noise notch" that those who experience hearing loss after exposure to hazardous levels of noise show on audiograms.
Fluid lights up on --- and is dark on ---- MRIs.
A) T1; T2 weighted
B) T2; T1 weighted
Free Response Question:
What is the dB difference required for Weber to lateralize?
What is the dB difference required for Rinne to demonstrate BC>AC?
Quick Facts:
Tympanic Membrane Perforation
-Often due to cotton swabs, bobby pins, pencils, or hot metal (welders).
-Presents with pain + hearing loss.
-Dx w/ otoscopy. Note amount of perf.
-Central perf = does not involve annulus
-Marginal perf = involves annulus.
-Fork pt to confirm CHL, also look for nystagmus
-If pt does not lateralize appropriately and pt has nystagmus = stapes
subluxation w/ perilymphatic fistula which requires urgent treatment.
-Perfs usually heal on their own.
-Pt should follow strict dry ear precautions.
-Perform audiogram in 3 months to confirm hearing return to baseline. If perf has not healed in 3 months, will require tympanoplasty.
Ossicular Chain Dislocation
-Manifests as maximal CHL = 60 db.
-Treat w/ middle ear exploration and ossicular chain reconstruction w/
tympanoplasty.
What is the dB difference required for Weber to lateralize?
What is the dB difference required for Rinne to demonstrate BC>AC?
Quick Facts:
Tympanic Membrane Perforation
-Often due to cotton swabs, bobby pins, pencils, or hot metal (welders).
-Presents with pain + hearing loss.
-Dx w/ otoscopy. Note amount of perf.
-Central perf = does not involve annulus
-Marginal perf = involves annulus.
-Fork pt to confirm CHL, also look for nystagmus
-If pt does not lateralize appropriately and pt has nystagmus = stapes
subluxation w/ perilymphatic fistula which requires urgent treatment.
-Perfs usually heal on their own.
-Pt should follow strict dry ear precautions.
-Perform audiogram in 3 months to confirm hearing return to baseline. If perf has not healed in 3 months, will require tympanoplasty.
Ossicular Chain Dislocation
-Manifests as maximal CHL = 60 db.
-Treat w/ middle ear exploration and ossicular chain reconstruction w/
tympanoplasty.
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