Basic ECG [Compatibility Mode]

Basic ECG - Electrocardiography Basics KINE 4315 Rules of ECG Wave of depolarization traveling towards a positive electrode causes an upward

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1 Electrocardiography Basics KINE 4315 Rules of ECG • Wave of depolarization traveling towards a positive electrode causes an upward deflection on the ECG • Wave of depolarization traveling away from a positive electrode causes a downward deflection on the ECG
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3 Time and voltage • ECG – waves are primarily from myocardial cell activity – Characteristics of ECG recordings • Duration • Amplitude • Configuration – EKG paper •L i n e s • Squares • Vertical Axis Segments and Intervals Segment – strait line between waves Interval – wave plus a segment PR interva 012 020mse PR interval – 0.12 – 0.20 msec ST segment – end of ventricular depolarization to start of vent. repolariztion
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4 Atrial Depolarization • P wave – small, round deflection on the ECG – Right atrial component Right atrial component – Left atrial component – Normal amplitude – 0.25 mV (2.5 mm) – Normal duration – 0.04 – 0.12 msec • AV node conduction pause
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This note was uploaded on 01/16/2012 for the course KINE 430 taught by Professor Dr.jenniferblevins-mcnaughton during the Fall '11 term at Tarleton.

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Basic ECG - Electrocardiography Basics KINE 4315 Rules of ECG Wave of depolarization traveling towards a positive electrode causes an upward

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