A patient is having an IgE-mediated hypersensitivity reaction. What action by the healthcare professional is best?
A)Give the patient an antihistamine.
B)Prepare to give the patient a blood transfusion.
C)Ask the patient is he/she is having pain at the site.
D)Apply warm, moist heat to the affected area.

Question

Quizplus · Accepted Answer

Histamine is the most potent mediator in an IgE-mediated hypersensitivity reaction (Type 1). Histamine bound to H₂ results in the degranulation of mast cells with the release of histamine. Blocking histamine receptors with antihistamines can control some type I responses. The healthcare professional would not need to give the patient blood; warm; moist heat; or ask about pain.

A Patient Is Having an IgE-Mediated Hypersensitivity Reaction