skin infections

Question 1

cellulitis

Answer 1

acute spreading inflammation of dermis and subcutaneous tissue

borders often indistinct

Question 2

cellulitis CF

Answer 2

involved areas are swollen, red, hot, tender, pinkish and indurated skin,

pt may have LAD, fever,chills, malaise

Question 3

Cellulitis etiologic agents

Answer 3

GAS, S. aureus,

Question 4

tx celluitis

Answer 4

best to begin tx w/ something that will cover H. flu, streptococcus, and staphylococcus,

Question 5

when to think GAS cellulitis

Answer 5

pts w/ lymphedema, chronic statis, or venous grafts

Question 6

mild tx of cellulitis

Answer 6

dicloxacilllin or chepalosporin (in PCN allergic pts)

Question 7

severe infection cellulitis

Answer 7

1st gen cephalosporin via IV

**can switch to oral therapy when fever, chills, malaise subsides

Question 8

clinical pearls for cellulitis tx

Answer 8

mark the margins of involvment before tx to follow progression or regression of hte area

Question 9

refractory cellulitis

Answer 9

think necrotizing fascitis! need surgical intervention

Question 10

Erysipelias

Answer 10

superficial cellulitis

Question 11

erysipelias CF

Answer 11

painful, macular rash w/ wel defined margins, bullae may develop; abrupt onse, raised borders wi/ cear demarcation from uninvolved skin; rash will desquamates in 5-10 days

Question 12

erysipelias etiology

Answer 12

GAS, rarely S. aureus

Question 13

tx of erysipelias

Answer 13

lower extremities and face most likely affected

Question 14

how do you tx impetigo?

Answer 14

topical: bactroban (mupricocin ointment) or Altabax (retapamulin)
systemic: cephalosporin, dicloxacillin

Question 15

ecthyma

Answer 15

deep impetigo

Question 16

ecthyma CF

Answer 16

crust is yellowish-gray, thicker and harder than crust of impetigo

Question 17

intertrigo

Answer 17

non-specific etiology of skin infection GA&BS, non-diptheroid species of Corynebacterium, P. aeruginosa

Question 18

intertrigo CF

Answer 18

can be confused with inflammatory dermatosis (psoriasis, etc)

bacterial etiology- plaque borders more defined, also no satellite lesions + odor

Question 19

what do you think if you see intertigo in the neck folds of babies?

Answer 19

strep!!