MSN620 Quiz 3 - Skin And Soft Tissue Infections
what are focal skin and soft tissue infections normally caused by? bacteria infections (impetigo,
folliculitis, cellulitis, erysipelas, furuncles and carbuncles, and necrotizing fasciitis
What is pain like in impetigo? Necrotizing fasciitis? - I...
MSN620 Quiz 3 - Skin And Soft Tissue Infections
what are focal skin and soft tissue infections normally caused by? ✅bacteria infections (impetigo,
folliculitis, cellulitis, erysipelas, furuncles and carbuncles, and necrotizing fasciitis
What is pain like in impetigo? Necrotizing fasciitis? ✅- Impetigo: no pain
- Necrotizing fasciitis: severe pain
T/F: most skin infections tend to be localized and around a particular anatomical structure ✅true
What type of lesions cause itchiness? ✅superficial lesions like impetigo or folliculitis
What lesions involve the hair follicle? ✅folliculitis, furuncles, and carbuncles
What is fever like in erysipelas? Necrotizing fascitis? ✅- Erysipelas: high and abrupt in onset
- Necrotizing fasciitis: fever persists
How are cellulitis and furuncles caused? ✅contact with individuals with skin infections - most commonly
community-acquired MRSA
What may be seen on physical exam in patients with skin infections? ✅- signs of systemic illness like
fever and chills
- signs of toxicity like lethargy, tachycardia, and hypotension.
What additional symptoms can be seen in patients with non-bullous impetigo and cellulitis?
✅adenopathy
What additional symptoms can be seen in patients with bullous impetigo? ✅bullae
, What additional symptoms can be seen in patients with necrotizing fasciitis? ✅crepitus with edema that
exceeds the rash border
What type of rash does each skin infection have? ✅- folliculitis: papular
- impetigo: vesicular or pustular
- cellulitis: macular erythema
When should additional lab work be done? ✅s/s of toxicity
What can be done to identify specific pathogens? ✅- gram stain
- skin cultures
- swab cultures
When should blood cultures be taken? ✅when there is deep tissue involvement like necrotizing fasciitis
or erysipelas
What other tests can be done? ✅- CBC
- CRP
- LFTs
- KFTs
When should an xray be done? ✅when there is a deep infection and bone involvement is suspected
Why might an ultrasound be used? ✅- look for evidence of an abscess below an area of cellulitis
- assess crepitus when necrotizing fasciitis is suspected
How is diagnosis of necrotizing fasciitis made? ✅exploratory surgery
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