Figure 1.
EKG showing sinus rhythm with 1st-degree A-V block, right atrial enlargement, nonspecific T wave abnormality, and prolonged QT and PR intervals.
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.