Skin infections Flashcards
What is the common pathogen associated with folliculitis?
Staph
2nd- pseudomonas
What is the initial empiric therapy for folliculitis?
Dicloxacillin/keflex
What is a non-necrotizing inflammation of the skin and subcutaneous tissue that does not involve fascia or muscles?
cellulitis
What bacteria is most commonly associated with pus/abscess infection? Cellulitic infections?
Abcess= staph aureus Cellulitis = strep
What organism is most likely to present with purulent drainage trauma or eschar?
staph
What infection is characterized by the UPPER DERMIS and superficial lymphatics ?
Erysipelas
Of all the skin infections which one has sharply demarcated red borders?
Erysipelas
Signs of potentially severe infections that might need debridement:
Violaceous bullae sloughing rapid progression hemmorrhage skin anesthesia gas in the tissue
How do you treat cellulitis in the outpatient setting?
dicloxicillin
amoxicillin
cephalexin/keflex
In PCN allergy:
Clindamycin
Azithromycin/Zythromax
Clarithromycin/Biaxin
How is purulent cellulitis treated?
Bactrim
Doxycycline- doesn’t cover strep well though
When should patients be seen after their first outpatient appointment for cellulitis?
48-72 hours
When should a patient be hospitalized for cellulitis?
Hypotensive/systemically ill
Large area affected
Comorbidities
Failure with outpatient care
How would you treat the following scenarios in inpatient setting:
Uncomplicated cellulitis
Cellulitis with purulence
Aquatic environment infections
IV
Uncomplicated cellulitis: Cefazolin/Ancef or PCN
Cellulitis with purulence: Vanco
Aquatic: think pseudomonas… Ceftazidime or a quinolone :cipro/levo
What can you discharge a patient home on after the patient has been afebrile in the hospital with a cellulitis infection?
Oral whatever their IV was or augmenting/cephalexin/cephazolin
10 days of therapy!!!
What are the 2 most common pathogens in DM foot ulcers?
anaerobes from lack of oxygen perfusion
gram - rods from the gut because poop just keeps moving down that way
