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Questions and Answers
What happens to the left ventricle when the left bundle branch is blocked?
What happens to the left ventricle when the left bundle branch is blocked?
- It becomes electronegative
- It depolarizes more rapidly than the right ventricle
- It remains electropositive (correct)
- It becomes totally depolarized
What is the result of the intense left axis deviation?
What is the result of the intense left axis deviation?
- The negative end of the vector points toward the right ventricle
- The negative end of the vector points toward the left ventricle
- The positive end of the vector points toward the left ventricle (correct)
- The positive end of the vector points toward the right ventricle
What is the duration of polarization in the left ventricle after the right ventricle has become totally depolarized?
What is the duration of polarization in the left ventricle after the right ventricle has become totally depolarized?
- 0.1 second (correct)
- 10 seconds
- 0.01 second
- 1 second
What happens to the left ventricle when the left bundle branch is blocked?
What happens to the left ventricle when the left bundle branch is blocked?
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What causes left axis deviation in the heart?
What causes left axis deviation in the heart?
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How does the speed of depolarization differ between the right and left ventricles when the left bundle branch is blocked?
How does the speed of depolarization differ between the right and left ventricles when the left bundle branch is blocked?
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