A patient is diagnosed with a type IV delayed hypersensitivity reaction. Which of the following is an example of this type of reaction?

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Quizplus · Accepted Answer

Type IV delayed hypersensitivity reaction is characterized by T-cell mediated inflammation and onset that is usually delayed by 24-48 hours. Examples of type IV reactions include contact dermatitis (such as a latex allergy) and some types of drug reactions. Reaction to a wasp sting is a type I immediate hypersensitivity reaction, serum sickness is a type III immune complex hypersensitivity reaction, and autoimmune hemolytic anemia is a type II cytotoxic hypersensitivity reaction.

A Patient Is Diagnosed with a Type IV Delayed Hypersensitivity