Question

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?

pacemaker
angioplasty
clot-dissolving drugs
myocardial infarction

Answer 1

a

Step-by-step explanation:

Answer 2

I believe this is a pacemaker. It controls the heart when it starts to fail.

Step-by-step explanation: