Which coronary artery occlusion is typically responsible for an infarct of the posterior-inferior wall and the posterior third of the septum?
Show answer and explanation
Correct answer: Right coronary artery
In most individuals (right-dominant circulation), the RCA gives rise to the posterior descending artery. Therefore, RCA occlusion results in inferior and posterior wall infarctions and can also involve the AV node.
Keep practicing
More Myocardial Infarction questions
- Macro-test for MI: Which chemical can be used on fresh heart slices to highlight areas of infarction as pale (unstained) zones?
- A 70-year-old woman survives an MI but develops progressive shortness of breath and orthopnea. This is most likely due to:
- The formation of granulation tissue in a myocardial infarct is typically seen during which time frame?
- Which of the following is a risk factor for myocardial rupture after an infarction?
- Stunned myocardium refers to:
- Which of the following is the most common cause of acute myocardial infarction?