Derm Contact Dermatitis
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| Irritant contact subjective criteria | Onset within minutes to hours of exposure. Pain, burning, stinging or discomfort exceeding itching, onset w/in 2 wks of exposure, many people affected, sharp borders, evidence of gravitational influence, lack of tendency to spread
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| Irritant contact dermatitis associations | occupation (see if it clears when on vacation), water, soaps, detergents, wet work, solvents, greases, acids and alkalis, fiberglass, particulate dust, low humidity
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| Corrosive necrotizing effects of chromates | ICD chrome ulcers
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| Sensitization may be down-regulated in this type of dermatitis | atopic dermatitis. Patch testing is useful
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| Locations relatively resistant or uncommon in allergic contact dermatitis | scalp, palms, soles, mucous membranes
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| Systemic allergic contact dermatitis | After topical sensitization to an allergen, oral ingestion of the allergen causes diffuse reaction. Ex: using topical benedryl, and then later rxn to oral benedryl
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| Toxicodendron plants | poison ivy, poison oak, mango, lacquer tree, cashew nut (raw), indian marking nut, black varnish tree
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| poison ivy leaves note | if leaf is torn, it should be black along the tear due to oxidation
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| ACD compositae dermatitis | Parthenolide. Tansy, feverfew, pyrethrum, summer-exacerbated, sensitivity to flowers, photosensitivity
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| ACD associated with Alstromeria | Tuliposide A - mostly concentrated in the bulb
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| Chronic hand dermatitis should make you think of | rubber or latex. Get a RAS IgE test
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| When you seen splotches of red all over the face, consider | parabens
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| Oxybenzone is a allergen found in | Sunscreen
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| If someone is allergic to neomycin, don't give them | Bacitracin, gentamicin
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| Diffuse or patchy dermatitis over dorsal hands and fingers may be | rubber or latex allergy
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| Tanning agents may contain | trivalent chrome salts causing ACD chrome
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| Sorbic acid is found in | foods and pharmaceuticals
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| Provocation use test or open test | Apply substance to antecubital fossa twice daily for one week. Can help distinguish irritant from allergic reaction and confirm allergic reaction
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| patch test indications | if the dermatitis is: chronic, recurrent, deterrent to work/life activities
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| Can you patch test acute dermatitis? | NO. Avoid testing, wait until it calms down. ANGRY BACK SYNDROME
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