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A member asked:
How do beta-clockers increase cardiac output?
5 doctors weighed in across 2 answers
They don't: Beta blockers do not increase cardiac output. If anything, they reduce cardiac output by reducing heart rate and the strength of contraction (contractility).
Answered 1/22/2015
6.3k views
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They do not per se: In treatment of cardiomyopathy they take strain off the heart so it can heal & regain strength over time and in that way can eventually improve cardiac output = heart rate x stroke volume.
Answered 7/22/2013
5k views
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