There is no official government body or standards agency that will certify a commercial computerized product or service as ________ compliant

What occurs during a single heartbeat?

A) The atria and ventricles contract in a coordinated manner. B) The atria and ventricles contract at the same time. C) The atria contract. D) The ventricles contract.

In atrial flutter, the flutter waves are regular

Indicate whether the statement is true or false