Left Bundle Branch Block Quiz
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Questions and Answers

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?

  • 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?

  • 0.1 second (correct)
  • 10 seconds
  • 0.01 second
  • 1 second

    • What happens to the left ventricle when the left bundle branch is blocked?

    <p>It becomes electropositive</p> Signup and view all the answers

    What causes left axis deviation in the heart?

    <p>Electropositivity in the right ventricle</p> Signup and view all the answers

    How does the speed of depolarization differ between the right and left ventricles when the left bundle branch is blocked?

    <p>Depolarization spreads faster through the right ventricle</p> Signup and view all the answers

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