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A patient with septic shock is noted to have persistent hypotension despite dopamine infusion. Epinephrine in an intravenous infusion is used. With which adrenoceptor does epinephrine act to constrict vascular smooth muscle?
A. a1-adrenoceptors
B. a2-adrenoceptors
C. b1-adrenoceptors
D. b2-adrenoceptors
E . A & D both
Edited by new_n_lost on 05/28/07 - 10:31 AM. Reason: Corrected the Format of the Question
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| Addicudo
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A. a1-adrenoceptors
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| drduck
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Only alfa 1.....
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| new_n_lost
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A. a1-adrenoceptors
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| lq2006
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A
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| keepgoing
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 good 
A. a1-adrenoceptors mediate vasoconstriction in many vascular beds. In skeletal muscle, epinephrine can act at b2-adrenoceptors to cause vasodilation.
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| bully
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ans should be alpha 1 adrenoceptors
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