A client is prescribed an antihistamine for an allergic reaction.The client asks,Why am I getting this? What is a histamine anyway?" How can the nurse most accurately describe the action of histamine in the body?
A) Histamine causes your blood vessels to dilate and leak.That is why you are swollen and itchy."
B) Histamine stimulates production of the clotting parts of your blood.That is why you are blotchy."
C) Histamine stimulates production of white blood cells to fight off infection.That is why you feel flushed."
D) Histamine stimulates production of the red cells of your blood.That is why you are red."
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