What type of hypersensitivity reaction is most commonly associated with penicillin allergy?

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Multiple choice — select the best answer

AType II hypersensitivity
BType III hypersensitivity
CType IV hypersensitivity
DType I hypersensitivity

✓ Correct answer: D. Type I hypersensitivity Type I hypersensitivity reactions are immediate, IgE-mediated allergic responses commonly seen with penicillin allergies, involving mast cell degranulation and histamine release.

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What type of hypersensitivity reaction is most commonly associated with penicillin allergy?

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