Skin Bacterial Infections Flashcards
what is the appearance of lower leg cellulitis on the skin?
erythematous plaque with ill defined borders
how does cellulitis feel to person?
it is tender
what other manifestation can happen with cellulitis on the skin?
lymphatic streaking and palpable lymph nodes
what can cellulitis lead to if left untreated?
sepsis
what general symptom co occurs with cellulitis?
fever
what is most common organism for cellulitis?
staph aureus
what meds to you give for community acquired cellulitis?
cephalosporin
what meds do you give for CA MRSA?
doxycycline, bactrim or clindamycin
what meds do you give for inpatient MRSA?
vancomycin
what is cellulitis on the face called?
erysipelas
how do you treat erysipelas?
oral abx
how do you treat an abscess?
incision and drainage and potentially abx
what is a furuncle?
acute round tender circumscribed abscess that has central drainage, all around a hair follicle
what is a carbuncle?
coalescence of several inflamed follicles into a single mass with purulent discharge
where do furuncles and carbuncle occur?
only around hair follicles
what bug causes furuncles and carbuncles?
staph aureus
what do you do to treat furuncles and carbuncles?
warm compresses to promote drainage…incise and drain if super big
what is folliculitis?
superficial infection of the hair follicles
what bug commonly causes folliculitis?
staph aureus
what bug causes folliculitis if patient has been in a hot tub?
pseudomonas
what commonly causes folliculitis?
shaving genital area
where does folliculitis generally occur
genitals
what skin lesion commonly has a honey colored crust?
impetigo
what causes impetigo?
superficial bacterial skin infection
who gets impetigo?
kids 2-5 yo
what bug generally causes impetigo?
staph aureus and strep pyogenes
what are the two types of impetigo?
non bullous and bullous impetigo
describe how non bullous impetigo looks and changes over time
starts out as erythematous papules and then becomes more like pustules that lead to honey comb crust
how does bullous impetigo appear on the skin?
flaccid bullae with clear yellow liquid
what cause bullous impetigo?
staph exotoxin
what is staphylococcal scalded skin syndrome?
staph a toxin gets into blood and leads to widespread blistering and tons of skin peeling
how to treat staphylococcal scalded skin syndrome?
antibiotics leads to good recovery
how do you treat impetigo?
topical or oral abx
dusky blue coloration of a plaque on the skin is characteristic of what?
necrotizing fasciitis
what is treatment for necrotizing fasciitis?
surgery immediately to remove all tissue affected
