Hypersensitivity to poison ivy _____.
A)is due to the formation of granulomas
B)is a type I hypersensitivity reaction
C)leads to contact dermatitis due to immune reaction to urushiol
D)occurs immediately after contact with the oil from the plant

Question

Quizplus · Accepted Answer

Hypersensitivity to poison ivy is caused by a type IV delayed hypersensitivity reaction, which leads to contact dermatitis due to an immune reaction to urushiol. It does not involve the formation of granulomas and does not occur immediately after contact with the oil from the plant, so options A and D are incorrect. Option B is incorrect because it refers to a type I hypersensitivity reaction, which is a different mechanism of immune response.

Hypersensitivity to Poison Ivy _____