Heart Blocks Quiz: Test Questions - 316 - Heart Blocks. Authors and Reviewers Authored by Thomas O'Brien Medically reviewed by Dr. Jonathan Keroes, MD, Cardiology Last Update: 11/8/2020 LessonsRhythm Analysis - 316.Heart Block Dysrhythmias.First Degree Heart Block.Second Degree Heart Block Type I.Second Degree Heart Block Type II.Third Degree Heart Block.✓Quiz: Test Questions - 316.Sign-in to enable progress reports and certificates. Next Lesson