home *** CD-ROM | disk | FTP | other *** search
/ Emergency Cardiovascular Care Library / Emergency Cardiovascular Care Library (American Heart Association).ISO / Book_ACLS / ACLS_ch03 / fig03_23.htx / fig03_23
Text File  |  1998-01-11  |  766b  |  21 lines
  1. <HTML>
  2. <HEAD>
  3.   <META NAME="GENERATOR" CONTENT="Adobe PageMill 2.0 Win">
  4.   <TITLE>Untitled Document</TITLE>
  5. </HEAD>
  6. <BODY TEXT="#bafddc" BGCOLOR="#006666">
  7.  
  8. <P><B>Fig 23. Second-degree AV block type I. Atrial rhythm is nearly regular,
  9. but there are pauses in ventricular rhythm because every fourth P wave does
  10. not conduct into ventricles. Note progressive prolongation of PR interval,
  11. indicating increasing conduction delay in AV node before nonconducted beat.
  12. There are four P waves and three QRS complexes in this example, representing
  13. a 4:3 cycle. The QRS complexes are normal.</B></P>
  14. <A NAME="anchor1"></A>
  15.  
  16.  
  17. <P><IMG SRC="Book_ACLS/ACLS_source_art/fig03_23.gif" WIDTH="620" HEIGHT="174" 
  18. ALIGN="BOTTOM" NATURALSIZEFLAG="3">
  19. </BODY>
  20. </HTML>
  21.