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ECG Rhythm Interpretation

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Slide 1 :

ECG Rhythm Interpretation Module I ECG Basics

Slide 2 :

Course Objectives To recognize the normal rhythm of the heart - “Normal Sinus Rhythm.” To recognize the 13 most common rhythm disturbances. To recognize an acute myocardial infarction on a 12-lead ECG.

Slide 3 :

Learning Modules ECG Basics How to Analyze a Rhythm Normal Sinus Rhythm Heart Arrhythmias Diagnosing a Myocardial Infarction Advanced 12-Lead Interpretation

Slide 4 :

Normal Impulse Conduction Sinoatrial node AV node Bundle of His Bundle Branches Purkinje fibers

Slide 5 :

Impulse Conduction & the ECG Sinoatrial node AV node Bundle of His Bundle Branches Purkinje fibers

Slide 6 :

The “PQRST” P wave - Atrial depolarization T wave - Ventricular repolarization QRS - Ventricular depolarization

Slide 7 :

The PR Interval Atrial depolarization + delay in AV junction (AV node/Bundle of His) (delay allows time for the atria to contract before the ventricles contract)

Slide 8 :

Pacemakers of the Heart SA Node - Dominant pacemaker with an intrinsic rate of 60 - 100 beats/minute. AV Node - Back-up pacemaker with an intrinsic rate of 40 - 60 beats/minute. Ventricular cells - Back-up pacemaker with an intrinsic rate of 20 - 45 bpm.

Slide 9 :

The ECG Paper Horizontally One small box - 0.04 s One large box - 0.20 s Vertically One large box - 0.5 mV

Slide 10 :

The ECG Paper (cont) Every 3 seconds (15 large boxes) is marked by a vertical line. This helps when calculating the heart rate. NOTE: the following strips are not marked but all are 6 seconds long. 3 sec 3 sec

Slide 11 :

End of Module I ECG Basics Proceed to Module I Practice Quiz on WebCT

caroljean on Aug 09, 2009 Says :

great

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	SlidesOnline 1 Years ago. Category: other

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SA NodeDominant pacemaker with an intrinsic rate of 60100 beats/minute. AV NodeBack-up pacemaker wi more SA NodeDominant pacemaker with an intrinsic rate of 60100 beats/minute. AV NodeBack-up pacemaker with an intrinsic rate of 4060 beats/minute. … less

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