Contact dermatitis
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Contact dermatitis
Immune system
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Immunodeficiencies: Phagocyte and complement dysfunction: Pathology review
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Contact dermatitis
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Contact dermatitis
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USMLE® Step 1 style questions USMLE
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Which of the following factors most likely triggered this patient’s skin condition?
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First Aid
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Contact dermatitis p. 111
Hypersensitivity reaction type IV
contact dermatitis p. 489
Type IV hypersensitivity reactions
contact dermatitis p. 489
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Summary
Contact dermatitis is a type of skin rash that occurs when your skin comes into contact with an allergen or irritant. It is considered a type IV (delayed) hypersensitivity reaction, and commonly associated allergens include perfumes, cosmetics, latex, detergents, and plants such as poison ivy. Common symptoms include skin redness, swelling, itching, blisters, and dry skin. In severe cases, contact dermatitis can lead to cracks in the skin that may become infected.
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