The Only EKG Book You'll Ever Need

The Only EKG Book You'll Ever Need

Language: English

Pages: 352

ISBN: 1451119054

Format: PDF / Kindle (mobi) / ePub


This popular and practical text presents all the information clinicians need to use the EKG in everyday practice and interpret hypertrophy and enlargement, arrhythmias, conduction blocks, pre-excitation syndromes, and myocardial infarction. It is an ideal reference for medical students in ICM courses, house officers, or anyone directly involved in patient care, whether student, teacher, or practitioner.

  • Four-color design to make models, illustrations and tracings clearer
  • More questions for faculty test generator
  • Numerous new tracings
  • Expanded sections on subjects where new developments have made deeper understanding possible including atrial fibrillation, long QT syndrome, apical ballooning syndrome and more
  • 200 facsimiles of EKG strips
  • Clinical examples to help students get a sense of the clinical use of EKG
  • Numerous case studies
  • Online companion site with fully searchable text and image bank. Plus, an interactive question bank for students, EKG Image with explanation test bank and test generator for faculty

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vectors. This summation vector is called the mean vector, and its direction is the axis of ventricular depolarization. Axis is defined in the frontal plane only. The mean QRS vector points leftward and inferiorly, representing the average direction of current flow during ventricular depolarization. The normal QRS axis—the direction of this mean vector—thus lies between +90° and 0°. (Actually, most cardiologists extend the range of normal from +90° to −30°. In time, as you become more

P waves is the key to identifying atrial fibrillation. The wavelike forms that may often be seen on close inspection of the undulating baseline are called fibrillation waves. (A) Atrial fibrillation with a slow, irregular ventricular rate. (B) Another example of atrial fibrillation. In the absence of a clearly fibrillating baseline, the only clue that this rhythm is atrial fibrillation is the irregularly irregular appearance of the QRS complexes. Carotid massage may slow the ventricular

premature atrial contraction, it’s usually easy because there is a P wave preceding the wide QRS complex. Look especially closely at the T wave of the preceding beat to see if a premature P wave is hidden within it. On the other hand, and rather obviously, there is no P wave preceding a PVC. However, when there are several consecutive beats occurring in rapid succession, or a lengthy, sustained arrhythmia, the distinction can be much more difficult. PSVT and VT have about the same rates. Thus,

assure yourself that she is breathing, and feel her pulse. It is rapid and regular with a rate of about 200 beats per minute. Because she is young and very unlikely to have significant carotid artery disease, you go right ahead and perform carotid massage, and within about 10 seconds you feel her pulse shift gears and return to normal. Her eyes blink open and the room erupts in cheers. Your guess was correct. As you are carried out of the room on everyone’s shoulders, don’t forget to remind them

orientation of current vectors is given in ranges, not precise numbers. For example, the normal range of the P wave vector is 0° to 70°. Rotation of the heart within the chest cavity redirects the perceived direction of current flow. Lead III is normally oriented perpendicularly to atrial depolarization. With the apex of the heart turned leftward, lead III will view atrial depolarization as receding and will record a wave that is largely negative. The PR Interval The PR interval

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