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Author Question: On the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle ... (Read 89 times)

jasdeep_brar

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on: Jun 25, 2018
On the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle of His, right and left bundle branches, and the Purkinje fibers is reflected by the _____.
 
  a. TP segment
  b. PR segment
  c. QT interval
  d. QRS duration

Question 2

Which leads face the septum?
 
  a. II, aVF
  b. V1, V2
  c. V5, V6
  d. I, aVL


morganmarie791

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Reply #1 on: Jun 25, 2018
Answer to Question 1

B
The PR segment is the horizontal line between the end of the P wave and the beginning of the QRS complex. It is part of the PR interval and represents activation of the AV node, the bundle of His, the bundle branches, and the Purkinje fibers.

Answer to Question 2

B
Leads V1 and V2 face the septum.


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jasdeep_brar

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Reply #2 on: Jun 25, 2018
Thank you :)


morganmarie791

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Reply #3 on: Jun 25, 2018
Happy to help you


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