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Which orally administered agent improves exercise capacity in persons with pulmonary artery hypertension?


A) epoprostenol
B) bosentan
C) treprostinil
D) sildenafil
E) dinoprostone

F) A) and E)
G) None of the above

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B

A woman complains of sedation after taking a second-generation antihistamine in the morning. Which drug is most likely responsible for this side effect?


A) fexofenadine
B) desloratadine
C) loratadine
D) cetirizine
E) astemizole

F) A) and B)
G) All of the above

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D

Which autacoid is associated with the production of inflammation, edema, Pruritus, And cough?


A) serotonin
B) prostaglandin E1
C) endothelin
D) leukotriene B4
E) histamine

F) A) and E)
G) B) and E)

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E

Azelastine relieves nasal itching and discharge in persons with allergic rhinitis by antagonism of which receptors?


A) histamine H1
B) histamine H2
C) serotonin 5-HT1
D) serotonin 5-HT2
E) serotonin 5-HT3

F) B) and D)
G) B) and C)

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