A patient presents with poison ivy on the extremities, face, and buttocks after an initial exposure 48 hours ago.This condition is an example of:
A) anaphylaxis.
B) serum sickness.
C) delayed hypersensitivity.
D) viral disease.

Question

Quizplus · Accepted Answer

This condition is an example of delayed hypersensitivity, which is a type IV hypersensitivity reaction. It occurs 24-48 hours after exposure to an allergen, such as the urushiol oil found in poison ivy.

A Patient Presents with Poison Ivy on the Extremities, Face