NR566 midterm Exam with Complete Solutions
NR566 midterm Exam with Complete Solutions Histamine acts primarily through which two receptors? H1 and H2 Effects of H1 stimulation vasodilation, increased capillary permeability, bronchoconstriction, CNS effects, itching, pain, and increased mucus secretion. Should antihistamines be used for treatment of asthma? No. H1 stimulation causes bronchiole constriction. This will causes severe bronchoconstriction in the asthmatic patient. Effects of H2 receptors Gastric acid secretion. Two types of antihistamines H1 & H2 antagonists. When to treat a patient with a H1 antagonist medication to treat mild allergic reactions. When to treat a patient with a H2 antagonist medication gastric and duodenal ulcers
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nr566 midterm exam with complete solutions
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histamine acts primarily through which two recepto
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