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In the past, an irregular heart rhythm was treated by using a drug to help regulate the beat. There is a treatment that can also regulate heart rhythms that has replaced drugs in some cases. What is that treatment?

User Sdayal
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Answer:(A) on edge

Step-by-step explanation:

Pacemaker

User Nicolas Hauzaree
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A pacemaker regulates heart rhythms without drugs.

User Woodpav
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