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10 Cards in this Set
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- Back
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62 yr old male, complains of tingling pain on his right flank. that started about 3 months prior. Says that he had "crusty" blisters that eventually fell off where the pain is about 5 months ago. Dx?
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Zoster aka Shingles. He is experiencing postherpetic neuralgia.
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You take a culture from pt and find that it seems as if she has a staph infection. After plating it and running tests, you find that the colonies are white, coagulase negative, and they don't ferment mannitol but you still can't narrow it down. What test could you run to pinpoint what species of staph it is?
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Novobiocin. If it shows resistance, its saprophyticus. If its sensitive then its epidermidis.
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Pt comes in with diarrhea, fever, a systemic rash that looks like sunburn, and is very confused. After admitting her, a week later it appears her hands are peeling as well as the bottom of her feet. What is most likely her condition?
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TSST, possibily from staph infection
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24 yr old white male patient presents with very pruritic vesicles all over his body and says they itch like crazy. History and physical are unremarkable for anything besides diagnosis of Celiacs disease 3 years ago. You biopsy one of the lesions. What would you expect to see and what's the probable dx?
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IgA deposits at the epi/dermal junction. Dx of dermatitis herpetiformis
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45 greek female presents with systemic blistering. You take a biopsy and this is what you see. Dx? and what would you genetically test for?
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Pemphigus (intraepidermal acanthyolysis). test for HLA DR allele mutation.
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27 yr old asian female presents with a rash she says started as flat spots on her wrists and expanded and became bumpier. While doing her history you discover she had been hiking in the Pa mountains for two weeks before. Blood culture shows gram negative coccobacillus. Most likely dx?
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Rocky mountain spotted fever, probably bitten by a tick. Agent is R. ricketsii
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35 yr old male pt presents with widespread rash that kind of look like targets. History unremarkable, except for a recent infection for which he was prescribed a penicillin.
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Erythema Multiform- bull's eyeeeee and drug reaction
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8 yr old male presents with lesions on the bridge of the nose and on his cheeks that are slightly raised and very warm. You notice minor cuts on his face that he says he got from playing tag near bushes. Gram stain reveals gram positive cocci in grouped in lines. Dx? caused by what?
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Erysipelas caused by S. pyogenes.
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A 56-year-old female presented with an uncomfortable rash on her abdomen. She was vacationing in Florida and had spent much of her time in the hotel swimming pool and hot tub. Gram stain shows gram negative rods. Dx?
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P. aeruginosa folliculitis.
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50 yr old female already in the hospital presents with ulcerous and nectoric lesions under her armpits. Blood culture is evident of bacteremia. She has been on amoxicillin for about 2 weeks now for a staph infection. What is the likely dx and how would you confirm it?
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Ecthyma Gangrenosum from P. aeruginosa. Gram stain for gram negative rods.
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