Chapter 3 Analyzing EKG Rhythm Strips Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

To Analyze EKG rhythm strip Use organized format to collect available clues Compare information collected to rules for each arrhythmia Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Systematic Approach to Arrhythmia Interpretation Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Calculating Heart Rate – Regular Rhythms Count number of large squares between two R waves and divide into 300, or Count number of small squares between two R waves and divide into 1500 Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Calculating Heart Rates Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Figuring Rates Based on the Number of QRS Complexes in a 6-Second Strip Count number of R waves in a 6-second strip and multiply by 10 Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Rhythm Strip Analysis Format Regularity (Rhythm) Rate P Waves PR Intervals QRS Complexes Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Regularity (Rhythm) Is it regular? Is it irregular? Are there any patterns to the irregularity? Are there any ectopic beats; if so, are they early or late? Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

P Waves Are P waves regular? Is there one P wave for every QRS? Is P wave in front of QRS or behind it? Is P wave normal and upright in Lead II? Are there more P waves than QRS complexes? Do all P waves look alike? Are irregular P waves associated with ectopic beats? Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

PR Interval Are all PRIs constant? Is PRI measurement within normal range? If PRI varies, is there a pattern to changing measurements? Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

QRS Complex Are all QRS complexes of equal duration? What is the measurement of QRS complex? Is QRS measurement within normal limits? Do all QRS complexes look alike? Are unusual QRS complexes associated with ectopic beats? Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

Chapter 3 Practice Strips Gail Walraven, Basic Arrhythmias, Seventh Edition ©2011 by Pearson Education, Inc., Upper Saddle River, NJ

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