Tuesday, October 29, 2013

10/29/2013

10/29/2013

Answers:
What is the most common organism to cause infectious perichondritis of the auricle?
A) Staph
B) Pseudomonas
C) Strep
D) Candida
E) Moraxella


Pseudomonas is the most common bacteria to cause perichondritis of the auricle.

At what temperature is sensory nerve conduction blocked? What is the treatment for frostbite?

<10 degrees C or <50 degrees F. Consider this when treating pts for frostbite to ears/nose/face as patients will often not feel pain until skin rewarms. Treatment for frostbite involves quickly rewarming the tissue, but avoid rubbing as this can lead to further tissue damage.

MC Questions:
A 25 y/o M presents with symptoms of a right sided CHL. He endorses a sensation of fullness in that ear. On exam a mass of keratinized epithelium is noted which appears to be blocking the EAC. After removing the debris the underlying skin appears shiny, atrophic and erythematous however his CHL appears to improve. What is the most likely diagnosis?
A) Keratosis Obturans
B) Cerumen Impaction
C) Otitis Externa
D) Surfer's Ear
E) Otomycosis

Free Response Question:

What is the treatment of otitis externa?

Quick Facts:

The most common organisms to cause otomycosis include aspergillus niger, Mucoraceae, dermatophytes and actinomyces.

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