Antihistamine drugs are prescribed to stop the release of histamine. Histamine causes all of the following, EXCEPT ________

A) bacterial infection
B) irritation of tissues
C) pain and itching
D) vasodilation


Answer: A

A) Histamine does NOT cause infection.
B) Histamine DOES directly irritate tissues.
C) Histamine DOES cause pain and itching.
D) Histamine DOES cause vasodilation causing red, swollen mucous membranes.

Health & Biomechanics

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