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Author Question: A patient has ST segment changes that support an acute inferior wall myocardial infarction. Which ... (Read 77 times)

nmorano1

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on: Jun 25, 2018
A patient has ST segment changes that support an acute inferior wall myocardial infarction. Which lead would be best for monitoring the patient?
 
  a. I
  b. II
  c. V2
  d. V6

Question 2

When analyzing the rhythm of a patient's electrocardiogram (ECG), the nurse will need to investigate further upon finding a(n)
 
  a. isoelectric ST segment.
  b. P-R interval of 0.18 second.
  c. Q-T interval of 0.38 second.
  d. QRS interval of 0.14 second.


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heinisk01

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

ANS: B
Leads II, III, and AVF reflect the inferior area of the heart and the ST segment changes. Lead II will best capture any electrocardiographi c (ECG) changes that indicate further damage to the myocardium. The other leads do not reflect the inferior part of the myocardial wall and will not provide data about further ischemic changes in that area.

Answer to Question 2

ANS: D
Because the normal QRS interval is 0.04 to 0.10 seconds, the patient's QRS interval of 0.14 seconds indicates that the conduction through the ventricular conduction system is prolonged. The P-R interval and Q-T interval are within normal range, and ST segment should be isoelectric (flat).


nmorano1

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Reply #2 on: Jun 25, 2018
Correct answers!


heinisk01

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Reply #3 on: Jun 25, 2018
Great! Please up vote :D


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