Guide to Diagnostic Tests
Otitis externa
Organism
Otitis externa
Acute localized: S. aureus (15%) (GPC), anaerobes (32%), S. pyogenes (GPC in chains), H. influenzae , other gram-positive cocci.
“Swimmer’s ear”: Pseudomonas sp. (40%) (GNR), fungi (6%) (eg, Aspergillus sp., Candida sp.).
Chronic: Usually secondary to seborrhea or eczema.
Diabetes mellitus, AIDS (“malignant otitis externa”): P. aeruginosa (GNR), Aspergillus sp., Candida sp.
Furuncle of external canal: S. aureus.
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Citation
Nicoll, Diana, et al. "Otitis Externa." Guide to Diagnostic Tests, 7th ed., McGraw-Hill Education, 2017. Emergency Central, emergency.unboundmedicine.com/emergency/view/GDT/619372/all/Otitis_externa.
Nicoll DD, Lu CMC, McPhee SJS. Otitis externa. Guide to Diagnostic Tests. McGraw-Hill Education; 2017. https://emergency.unboundmedicine.com/emergency/view/GDT/619372/all/Otitis_externa. Accessed September 28, 2023.
Nicoll, D., Lu, C. M., & McPhee, S. J. (2017). Otitis externa. In Guide to Diagnostic Tests (7th ed.). McGraw-Hill Education. https://emergency.unboundmedicine.com/emergency/view/GDT/619372/all/Otitis_externa
Nicoll DD, Lu CMC, McPhee SJS. Otitis Externa [Internet]. In: Guide to Diagnostic Tests. McGraw-Hill Education; 2017. [cited 2023 September 28]. Available from: https://emergency.unboundmedicine.com/emergency/view/GDT/619372/all/Otitis_externa.
* Article titles in AMA citation format should be in sentence-case
TY - ELEC
T1 - Otitis externa
ID - 619372
A1 - Lu,Chuanyi Mark,
AU - Nicoll,Diana,
AU - McPhee,Stephen J,
BT - Guide to Diagnostic Tests
UR - https://emergency.unboundmedicine.com/emergency/view/GDT/619372/all/Otitis_externa
PB - McGraw-Hill Education
ET - 7
DB - Emergency Central
DP - Unbound Medicine
ER -
