The 4th Edition of Practice Code Scenarios-2011 - reviews 4 interactive Case Studies in Cardiac Arrest, with detailed explained answers and an 18-page Update on Changes in the 2010 ACLS Guidelines. PLEASE We have just come out with the 5th EDITION of this book = ACLS Practice Code Scenarios-2013 - which is GREATLY IMPROVED from the 4th Edition. Please buy the 5th Edition!