Cardiopulmonary Anatomy & Physiology
7th Edition
ISBN: 9781337794909
Author: Des Jardins, Terry.
Publisher: Cengage Learning,
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Chapter 13, Problem 7RQ
Summary Introduction
Introduction:
The heart is a pumping organ that pumps blood to different parts of the body by generating electrical impulses on its own. These electrical impulses generated in the heart are of major clinical significance and thus a system called electrocardiogram (ECG) is used to monitor the electrical activity of the heart. The ECG consists of waves, complexes, segments, and intervals that correspond to different activities of the heart such as the P wave, QRS complex, T wave, U wave, and QT interval. The ECG uses a characteristic graph paper having a square that denotes a particular time interval and this paper runs at the same speed as the ECG system.
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The normal duration of the T wave is A. 0.05 second or less B. 0.10 second or less C. 0.15 second or less D. 0.20 second or less
The normal duration of the QRS complex is less than A. 0.01 second B. 0.05 second C. 0.12 second D. 0.15 second
The normal calculated anatomic shunt is about A. 0.5-1 percent B. 2-5 percent C. 6-9 percentD. 10-12 percent
Chapter 13 Solutions
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