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Author Question: In pacing, sensitivity refers to _____. a. the ability of a pacemaker to recognize and respond to ... (Read 93 times)

Charlie

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on: Jun 25, 2018
In pacing, sensitivity refers to _____.
 
  a. the ability of a pacemaker to recognize and respond to intrinsic electrical activity
  b. a pacing lead with a single electrical pole at the distal tip of the pacing lead through which the stimulating pulse is delivered
  c. the successful conduction of an artificial pacemaker's impulse through the myocardium, resulting in depolarization
  d. the length of time between an atrial sensed or atrial paced event and the delivery of a ventricular pacing stimulus

Question 2

The QT interval is measured from the beginning of the _____.
 
  a. QRS complex to the end of the T wave
  b. P wave to the end of the QRS complex
  c. QRS complex to the beginning of the T wave
  d. P wave to the beginning of the QRS complex


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wshriver

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

A
Sensitivity refers to the extent to which an artificial pacemaker recognizes intrinsic cardiac electrical activity.

Answer to Question 2

A
The QT interval is measured from the beginning of the QRS complex to the end of the T wave. In the absence of a Q wave, the QT interval is measured from the beginning of the R wave to the end of the T wave. The term QT interval is used regardless of whether the QRS complex begins with a Q or R wave.


Charlie

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


wshriver

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


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