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Author Question: Repolarization of the papillary muscles or remnants of ventricular repolarization appears on an ... (Read 38 times)

EAugust

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on: Jul 16, 2018
Repolarization of the papillary muscles or remnants of ventricular repolarization appears on an electrocardiogram as a:
 
  a. P wave. c. U wave.
  b. T wave. d. J point.

Question 2

On an electrocardiogram, which of the following represents ventricular depolarization and re-polarization?
 
  a. PR interval c. ST segment
  b. QT interval d. QRS complex


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kjohnson

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Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: C
The U wave follows the T wave and precedes the successive P wave. It is thought to represent remnants of ventricular repolarization or repolarization of the papillary muscles.

Answer to Question 2

ANS: B
The QT interval is measured from the beginning of the QRS complex to the end of the T wave. It represents the time required for ventricular depolarization and repolarization to occur and also approximates the time of ventricular systole.


EAugust

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Reply 2 on: Jul 16, 2018
Gracias!

ktidd

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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