The nurse in an allergy clinic is educating a new patient about the pathology of the patient's health problem. What response should the nurse describe as a possible consequence of histamine release?
A) Constriction of small venules
B) Contraction of bronchial smooth muscle
C) Dilation of large blood vessels
D) Decreased secretions from gastric and mucosal cells
Ans: B
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Histamine's effects during the immune response include contraction of bronchial smooth muscle, resulting in wheezing and bronchospasm, dilation of small venules, constriction of large blood vessels, and an increase in secretion of gastric and mucosal cells.
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