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.
Serial electrocardiograms, lead II strips. (a): normal, 5 months prior to admission. (b): Complete third-degree atrioventricular (AV) block, at primary office 12 h before admission. (c): Type I second-degree AV block, 2 h after admission and antibiotic therapy. (d): first-degree AV block, 12 h after admission and antibiotic therapy. (e): normal, at discharge.
