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Adult Nurse Practitioner Exam Prep

Category - AANPCP Adult Nurse Practioner Practice Test

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An 80-year-old Hispanic woman attached to the ECG is diagnosed with myocardial infarction. Utilizing the ECG, an infarct is located on the base of the left ventricle. Which of the following arteries has been occluded?
  1. Lateral branch of the circumflex artery
  2. Marginal branch of the circumflex artery
  3. Left anterior descending artery
  4. Right coronary artery
Explanation
Answer - D - Occlusion of the right artery results in infarction of the base or inferior wall of the left ventricle. Occlusion of the left circumflex artery results in infarction of the lateral wall or posterior wall. Occlusion of the left anterior descending artery results in infarction of the anterior wall or anterolateral wall.
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