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Dermatology > Hypersensitivity Reactions > Flashcards

Hypersensitivity Reactions Flashcards

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Dermatology Board Prep flashcards
1
Q

What immunoglobulin are type 1 hypersensitivity reactions mediated by?

A

IgE

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2
Q

What are three examples of a type 1 hypersensitivity reaction?

A

Insect bite

Penicillin allergy

Asthma

Will also accept:

Eczema

Food allergy

Anaphylactic shock

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3
Q

What mediates a type 2 hypersensitivity reaction?

A

Cytotoxic IgG or IgM

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4
Q

What are three examples of a type 2 hypersensitivity reaction?

A

Haemolytic anaemia

Hyperacute organ rejection

Goodpastures syndrome (anti-glomerular basement membrane disease)

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5
Q

What mediates a type 3 hypersensitivity reaction?

A

Immune complex IgM or IgG

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6
Q

What are 3 examples of a type 3 hypersensitivity reaction?

A

Hypersensitivity pneumonitis (e.g bird fanciers lung)

SLE

RA

Also accept:

Post-streptococcal glomerulonephritis

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7
Q

What mediates a type 4 hypersensitivity reaction?

A

Cell mediated (T cells)

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8
Q

What are 3 examples of a type 4 hypersensitivity reaction?

A

Contact dermatitis

T1DM

Multiple sclerosis

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Dermatology (27 decks)

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