An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative example of transient out of range high impedances on atrial lead (upper panel) with noise seen on atrial channel (lower panel) after safety switch to unipolar sensing.