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48 Cards in this Set
- Front
- Back
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cause of bullous vs non-bullous impetigo
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bullous - staph
non-bullous - staph but also strep pyogenes |
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Tx for impetigo
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non-bullous - resolves in 2 weeks without tx
bullous in healthy - mupirocin ointment bullous complicated - oral B lactam |
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sequelae of non-bullous impetigo
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post-strep glomerulonephritis with or without antibiotic tx
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does impetigo scar?
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non-bullous - no
bullous - shiny erosion |
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use of whirlpools?
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fseudomonas folliculitis
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bug for folliculitis
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staph aureus
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pustules in hair follicles
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folliculitis
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tx for folliculitis
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antibacterial washes with chlorhexidine or triclosan
localized lesions - bacitracin or upirocin widespread, resistant recurrent - antibiotics |
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deep seated inflammatory nodule or collection of pus associated with a hair follicle
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faruncle
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collection of follicles with a deep communicating lesion
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carbuncles
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do faruncles or carbuncles scar?
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carbuncles do
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when to use antibiotics for faruncles, carbuncles and abscesses
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farunles around nose, in nares or ex auditory canal
large and recurrent surrounding cellulitis not responding to local care |
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where does ecthyma occur
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lower extremities
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bug in ecthyma
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strep pyogenes initiates and staph quickly contaminates
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how does ecthyma first appear
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vesicle or pustule
enlarges and crusts |
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"punched out" lesion with a purulent, necrotic base when debrided
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ecthyma
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ecthyma tx
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10 days of gram + coverage (dicloxacilllin, cephalexin)
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DD for ecthyma
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ecthyma gangenosum caused by pseudomonas
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superficial cellulitis with marked lymphatic involvement
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erysipelas (St. Anthony's fire)
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summertime
young, aged, debilitated, lymphedema abrupt onset of fever, chills, malaise, nausea cellulitis on skin esp on legs and face lymphatic involvement plaques painful to touch pitting edema |
Erysipelas
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post-inflammatory pigment changes afterwards
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erysipelas
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erysipelas tx
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10-14 days penicillin for strep cases
hospitalization and IV/IM antibiotics for children and the debilitated |
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+ ASLO titer
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erysipelas
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bugs for celllulitis
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staph
group A strep sometimes H flu in kids mixed GPC and gram(-) possible in: - diabetics - decubitus ulcers - chronic venous insufficiency |
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how does cellulitis get into dermis?
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immune competent - break in skin barrier
immunocompromised - blood borne |
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cellulitis location in kids? adults?
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head and neck in kids
extremities in adults |
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lymphatic streaking?
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cellulitis
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cellulitis tx
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10 day gram + antibiotic
if severe or on face: hospitalization with IV antibiotics |
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cellulitis tx in ase of diabetic or decubitus ulcers with cellulitis
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broad spectrum antibiotics:
- piperacillin/tazobactam, or - metronidazole and cipro if PCN allergic |
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why not give NSAIDS to pt with cellulitis
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may mask necrotizing infection
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who usually gets perianal cellulitis
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kids with anal fissures
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bugs in perianal cellulitis
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group A or strep pyogenes
can be staph aureus |
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which antibiotic is the most commonly reported antibiotic cause of pseudomembranous colitis
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clindamycin
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what does major pain indicate in the case of bacterial infections?
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possibility of necrotizing fasciitis or cellulitis
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inflamed, scaling plaques with advancing margin and central clearing
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tinea corporis
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normal Th1/Th2 balance tips toward Th2
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atopic dermatitis
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decrease IFNg and IL-2
increased IL 4, 5 increased IgE, EOS, mast cells |
atopic dermatitis
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denni morgan folds
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atopic dermatitis
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tx for atopic dermatitis
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education
avoidance hydrationn/emolilation topical steroids, tacrolimus, pimecrolimus (nFAT inhibitors) systemic antihistamines, antibiotics, steroids phototherapy |
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langerhans cell
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contact dermatitis
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urishiol
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poison ivy, oak, sumac
allergic contact dermatitis |
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nickel
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allergic contact dermatitis
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mercaptobenzothiazole
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in shoes
allergic CD |
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latex
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allergic CD
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cinnamic aldehyde
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in fragrances
allergic CD |
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diagnosing contact dermatitis
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distribution and history
patch testing |
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acids and alkali
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irritant contact dermatitis
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contact dermatitis treatment
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remove offending agent
if alkali, apply weak acid (vinegar, lemon juice) if acid (flush with water, neutralize with bicarb or soaps) topical steroids systemic steroids |
