Elevation of the ST segment in leads II, III, and aVF indicate damage where in the heart?

The elevation of the ST segment in leads II, III, and aVF indicates damage in the inferior region of the heart. This is because these specific leads are positioned to capture electrical activity in the inferior wall, which is primarily supplied by the right coronary artery in most individuals.

When the ST segment is elevated in these leads, it often signifies acute injury or ischemia in the inferior wall of the heart, commonly associated with inferior myocardial infarctions. The inferior leads reflect the electrical signals from the lower portion of the heart, and changes such as ST elevation can indicate the presence of damage or stress in that area. Recognizing these patterns is crucial for diagnosing heart conditions and determining the appropriate clinical response.