Allergic and Hypersensitivity Dermatoses Flashcards

1
Q

Which type of dermatitis is caused by chemicals or environmental substances that come in contact with the skin, or by rubbing?

A

IRRITANT CONTACT DERMATITIS

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2
Q

Which type of dermatitis is a cell mediated, type IV hypersensitivity due to sensitization to an allergen?

A

ALLERGIC CONTACT DERMATITIS

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3
Q

How many allergens have been identified?

A

OVER 200

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4
Q

Name the type 1 hypersensitivity reaction often seen in those with a family history of asthma, hay fever, and atopic dermatitis?

A

ATOPIC ECZEMA

oozing, crusting, flaking vesicles, seen on faces and elsewhere

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5
Q

Name the most common mediator for hives?

A

HISTAMINE

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6
Q

How are hives characterized?

A

EDEMATOUS PLATES
with
INTENSE ITCHING

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7
Q

Systemic drugs cause generalized reactions like __________.

A

URTICARIA

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8
Q

Name the chronic inflammatory skin disorder resulting from abnormal activation of T cells?

A

PSORIASIS

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9
Q

How do you know if you see psoriasis, which you should not treat during a flare up or if topical steroids recently used?

A

CIRCUMSCRIBED, RED THICKENED PLAQUES WITH OVERLYING SILVER SCALE

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10
Q

What disorder happens as a result of an abnormal immune response linked to Hep C infection?

A

LICHEN PLANUS

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