Otitis externa

Otitis externa is a topic covered in the Guide to Diagnostic Tests.

To view the entire topic, please or purchase a subscription.

Emergency Central is a collection of disease, drug, and test information including 5-Minute Emergency Medicine Consult, Davis’s Drug, McGraw-Hill Medical’s Diagnosaurus®, Pocket Guide to Diagnostic Tests, and MEDLINE Journals created for emergency medicine professionals. Explore these free sample topics:

Emergency Central

-- The first section of this topic is shown below --

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.

-- To view the remaining sections of this topic, please or purchase a subscription --