Skin infection Flashcards
cellulitis commonest organism
strep
gram negatives, anaerobes or fungi in what groups of people with cellulitis
children, diabetes, immunocompromised
what may streaking red lines away from cellulitic area mean
lymphatic system
what foot disease can be a port of entry
athelete’s foot
what is erysipelas
superficial form of cellulitis. borders sharply demarcated. fiery red rash
where does cellulitis vs erysipelas most commonly occur
c = legs e = face and legs
ix cellulitis
not usually necessary. CRP will likely be raised.
rx cellulitis
fluclox (erythro)
analgesia
rest and elevate
can draw around margin
rx if crepitus with cellulitis
immediate debridement
f/u for cellultiis
after 7 days of rx with abx
safety net: return if worsen after 48 h or systemic sx develop
duration of abx
7 days. can extend to 10-14.
what is nec fasc
necrotising infection involving any layer of the depe sort tissue compartment (dermis, subcut, fascia or muscle)
how to differentiate between cellulitis and nec fasc
difficult!
-severe pain/systemic illness out of proportion with localised signs
-bullae and ecchymotic skin lesions (spots of blood under skin) (not normal with cellulitis)
high index of suspicion necessary
-tenderness extending beyond apparent area of involvement
“feel worse than they have ever felt and don’t know why”
organism in previously healthy people with no underlying disease
group a strep
skin injury can occur how?
bite/sting, IV drugs
