Cellulitis Flashcards
3 organisms associated with Folliculitis
S. Aureus- Most common
Pseudomonas- Hot tub
Gram negative- acne
Furuncle
Hairfollical with pus extending in the dermis forming an abscess
Carbuncle
More superficial than a furuncle
Erysipelas
Malar region. Sharply raised border and orange peel texture. Usually caused by strep
Honey colored, crusted pustules
impetigo caused by B hemolytic strep or Staph
Sepsis, cellulitis and hemorrhagic bullae after exposure to saltwater fish or shellfish in patients with cirrhosis or chronic illnesses such as DM, RA, CKD
Vibrio Vulnificus
Skin ulcer with necrotic center in pt with neutropenia
Ecthyma gangrenosum from Peudomonas or other bacterial infections
B Hemolytic strep=
S. pyogenes, S agalactiae
Chronic nodular infection of distal extremities with exposure to fish tanks or marine environments
Mycobacterium marinum
Chronic nodular infection of distal extremities with exposure to fish tanks or marine envionments
Mycobacterium marinum
Chronic nodular infection of distal extremities with exposure to plants/soil
sporotrichosis and Nocardia
Sepsis following dog bit in a patient with asplenia
Capnocytophaga canimorsus
Swelling and erythema with pain out of proportion to physical exam findings
Necrotizing deep soft tissue infection (surgical emergency)
Follicle centered pustules in beard and pubic areas, axillae and thighs
S. aureus folliculitis
Follicle centered erythematous papules and pustules on the trunk, axillae and buttocks 1-4 days after hot tub or whirlpool exposure
Pseudomonas folliculitis
Symmetric pink to brown patches with thin scale in intertriginous areas
Erythrasma caused by corynebacterium minutissimum
Will fluoresce to coral red color with wood lamp.
Nonpurulent cellulitis treatment
Treat B hemolytic strep and MSSA
Dicloxacillin, Cephalexin, Clinda
Purulent cellulitis (mild to moderate) treatment
Treat MRSA
clinda, Bactrim, Doxy
Purulent cellulitis with extensive disease or signs of systemic toxicity treatment
IV Vanc or linezolid, daptomycin, telavancin, ceftaroline
Impetigo treatment
treat as non-purulent cellulitis or with mupirocin
Erysipelas
Ceftriaxone or pennicillin/amoxicillin
Folliculitis
topical mupirocin or clinda
Human bites
Ampicillin-sulbactam
Animal Bites
Ampicillin- sulbactam or amoxicillin clavulanate
Neutropenia
Vanc Cefepime
Necrotizing fasciitis, compartment syndrome, myonecrosis, purple bullae or sloughing of skin
Imipenem, clinida, vanc, prompt debridement
Erythrasma
Topical erythromycin, clarithromycin, clinda
Treatment for mild DM foot infection
Cephalexin, dicloxacillin, Amox-Clav, Clinda
Treatment for mild purulent DM infections (Risk for MRSA)
Clinda, Doxy, Bactrim
Treatment for moderate DM infections
two drug therapy:
Bactrim + Amox-clav
Clinda + Cipro, levofloxacin or moxi
Treatment for severe DM infections
B-lactam/B-lactamase inhibitor )amp- sulbactam
carbapenem
Fluoroquinolone
Surgical debridement
