A patient develops blistering and rash days after touching poison ivy.this reaction is an example of.....

Answer 1

This reaction is an example of a Type IV hypersensitivity reaction, which is also known as delayed-type hypersensitivity. In this case, the patient's immune system is reacting to the urushiol oil found in poison ivy, which can cause a localized allergic reaction. This response typically occurs a few days after exposure, as it involves T-cell activation and the recruitment of other immune cells.