MSK, Sports Med, Derma Flashcards
affected body surface area in SJS, SJS-TEN overlap syndrome, TEN
SJS: <10%
SJS-TEN overlap syndrome: 10-30%
TEN: >30%
most common precipitants of Stevens-Johnson syndrome (SJS) and Toxic epidermal necrosis (TEN)
Sulfonamides
NSAIDS
Antibiotics
Anticonvulsants
most common skin infection in children throughout the world
Impetigo
predominant organism in nonbullous impetigo
S. aureus
treatment of localized impetigo
Mupirocin 2% or Retapamulin 1% 2-3x a day for 10-14 days
most common etiologic agents of cellulitis
Staphylococcus aureus
Streptococcus pyogenes (Group A streptococcus)
treatment of SSSS
first generation cephalosporin (cefazolin) or
Clindamycin or
Vancomycin if MRSA is considered
most common cause of common warts/verruca vulgaris
HPV Types 2 and 4
Plantar warts/verruca plantaris is caused by?
HPV Type 1
flat warts/verruca plana is caused by?
HPV Type 3 and 10
Genital HPV is caused by?
HPV type 6 and 11
treatment of choice for scabies
Permethrin 5% cream
— applied to the entire body from the neck down, left for 8-12 hours, reapplied in 1 week for another 8-12 hr
this is the hallmark of all types of pediculosis
pruritus
oral treatment of impetigo if there is widespread involvement, evidence of deep involvement including cellulitis, furunculosis, abscess formation, or suppurative lymphadenitis
Cephalexin (25-50 mkday) x 7 days
MRSA: Clindamycin/Doxycycline/TMP-SMX
Drugs that can trigger TEN
Sulfonamides
Amoxicillin
Phenobarbital
Hydantoin
Allopurinol
subcutaneous infection that involves the deep layer of superficial fascia but may spare adjacent epidermis, deep fascia and muscle
Necrotizing fasciitis
in patients with cellulitis, in what conditions is blood culture warranted?
Patients younger than 1 yo
If there are signs of systemic toxicity
If adequate examination cannot be carried out
Immunocompromising condition is present
organisms most commonly isolated in polymicrobial necrotizing fasciitis
S. aureus
Streptococcal spp
Klebsiella sp.
E. coli
Anaerobic bacteria
typical duration of necrotizing fasciitis treatment
4 weeks
other term for SSSS/Staphylococcal scalded skin syndrome
Ritter Disease
commonly used treatment for molluscum contagiosum
Immunotherapy with candida or trichophyton antigen, repeated every 4 weeks until resolution
most important factor that determines spread of Scabies
extent and duration of physical contact with an affected individual
classic lesion of scabies not seen in infants
threadlike burrows
