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Author Question: The inferior wall of the left ventricle is supplied by the _____ coronary artery in most of the ... (Read 81 times)

audie

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on: Jun 25, 2018
The inferior wall of the left ventricle is supplied by the _____ coronary artery in most of the population.
 
  a. left
  b. right

Question 2

Capture is _____.
 
  a. the electrical stimulus delivered by a pacemaker's pulse generator
  b. a vertical line on the ECG that indicates the pacemaker has discharged
  c. the time measured between a sensed cardiac event and the next pacemaker output
  d. the ability of a pacing stimulus to successfully depolarize the cardiac chamber that is being paced


heyhey123

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

B
The inferior wall of the left ventricle is supplied by the right coronary artery in most people. If an ECG shows changes in leads II, III, and aVF, the inferior wall is affected, and it is reasonable to suppose that these ECG changes are due to partial or complete blockage of the right coronary artery.

Answer to Question 2

D
Capture is the successful conduction of an artificial pacemaker's impulse through the myocardium, resulting in depolarization.


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