week 13 Flashcards
impetigo primary vs secondary
primary- infection recently
secondary- nbreak in skin and then infected
impetigo infections causes
staph aureus
streptococcus pyogens
tx of impetigo
2-3 weeks- self resolved
Topical ABX if superficial, nonbullous, localized cases- Mupiricon or retapamulin
EDU: remove crust before applying ABX topically, treat ALL lesions
Oral abx if multiple lesions, infections in family members- cephalexin, augmentin, dicloxacillin, clindamycin
what is SSSS
staphylococcal scalded skin syndrome
- abrupt onset of fever, poor feeding, lethargy
- key finding is sandpaper rash resembling scarlet fever that rubs off with light rub
treatment of SSSS
IV ABX- dicloxacillin
first or second gen cephalosporins
minimal handling, adding ointments
cellulitis cause
s. aureus
erysipelas vs cellulitis
erysipelas- local signs and symptoms, well-demarcated area of infection
cellulitis- more severe, systemic symptoms, not well-demarcated
celleulitis TX
depends on suspected organism- cephalexin, bactrim, clindimycin
Follow-uo- 24 hours and daily after that to see response
folliculitis
- obstruction damage- acne, waxing, shaving
environmental causes- moist environment, maceration, poor hygeine, occlusive emollients, prolonged submersion in contaminated water
Furuncle (boil)
abscess with one hair
carbuncle
abscess with multiple hair follicles
candidiasis
yeast infection and thrush that is fungal related (mouth perianal, breast)
risk factors: immunosuppressed, moist, abx recently
dx study for yeast
KOH scraping
tx yeast
oral: nystatin 4x day dropper in each cheek
BF: nystatin on nipples
persistent: oral fluconazole
Skin (diaper/folds): nystatin topical, every diaper change
DO NOT COMBINE WITH CORTICOSTERIOD
tinia capitis
dermatophyte infection of scalp and hair shaft- ring worm
dx of Tinia capitis
clinical observation + cervical or occipital lymphadenopathy
antifungal tx tinia capatis
gold standard: griseofulvin- taken 6-8 weeks with fatty food (side effects: gi distrubance, skin eruptuions, headaches, photosensitivity)
or terbinafine (effective over 4 years)
tx with kerions
prednisone for inflammation and systemic antibiotics
monitoring tinia capatis
follow ups every 2-4 weeks and continue treatment until culture is negative for 2 weeks