Aehlert, Barbara, <br/><br/>
ECGs made easy / 
Barbara Aehlert, MSEd., BSPA, RN. 
 - Seventh edition. 
 - viii, 304 pages :  illustrations (chiefly color) ;  28 cm 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Electrocardiography is the process of producing an electrocardiogram, a recording of the heart's electrical activity. It is an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart using electrodes placed on the skin-- 
<br/><br/><label>ISBN: </label>9780323794251 0323794254 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrocardiography--Handbooks, manuals, etc.
<br/><br/><label>Dewey Class. No.: </label>616.1/207547  / A247