erpreting an ECG ECG interpretation. Following are two tracings for which you will calculate the heart key periods of the ECG. DRS complex, T wave, P-R interval, R-R interval, and Q-T interval on Tracings 1 and
erpreting an ECG ECG interpretation. Following are two tracings for which you will calculate the heart key periods of the ECG. DRS complex, T wave, P-R interval, R-R interval, and Q-T interval on Tracings 1 and
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:Procedure 1 Interpreting an ECG
You will now perform some basic ECG interpretation. Following are two tracings for which you will calculate the beart
rate and determine the duration of key periods of the ECG.
1. Identify and label the P wave, QRS complex, T wave, P-R interval, R-R interval, and Q-T interval on Tracings 1 and
2 in Figure 12.31.
Tracing 1
Tracing 2
FIGURE 12.31 ECG tracings
2 Calculate the heart rate for each tracing. Are the values normal or abnormal?
Heart Rate Tracing 1:
Heart Rate Tracing 2:
Transcribed Image Text:3 The pulmonary and aortic valves are known as the
a. atrioventricular (AV) valves.
b. semilunar valves.
c. coronary valves.
d. chordae tendineae.
4 The right and left coronary arteries are the first branches off the
a. aorta.
b. superior vena cava.
c. pulmonary trunk.
d. pulmonary veins.
5 High pressure in the systemic and pulmonary circuits often results in ventricular hypertrophy, in which the ventricle
enlarges to pump against greater force. Which side(s) of the heart would be affected by high pressure in the pulmonary
circuit? Which side(s) of the heart would be affected by high pressure in the systemic circuit? Explain.
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