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When ____________ is administered as a drug its main purpose is to increase contractility. When it is administered in high doses its alpha 1 effects override the beta 2 effects which causes vasoconstriction and increased systemic vascular resistance while still enhancing myocardial contractility and cardiac output.

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1. When ____________ is administered as a drug its main purpose is to increase contractility. When it is administered in high doses its alpha 1 effects override the beta 2 effects which causes vasoconstriction and increased systemic vascular resistance while still enhancing myocardial contractility and cardiac output.





 
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