Which leads show ST elevations in a High Lateral Wall Myocardial Infarction (MI)?

In a High Lateral Wall Myocardial Infarction, the ST elevations are primarily associated with the high lateral wall of the left ventricle, which is supplied by the left circumflex artery. The leads that represent this area on an electrocardiogram (ECG) are leads I and aVL.

Lead I views the electrical activity from the left arm and reflects the high lateral wall, while lead aVL also captures signals from the left lateral wall. When there is damage or ischemia in this region, these leads will show characteristic ST segment elevations. Recognizing such patterns on an ECG is critical for timely diagnosis and management of myocardial infarctions, which can significantly impact patient outcomes.

The other choices reflect different aspects of the heart's electrical activity and are not associated with the high lateral wall. Therefore, understanding the specific leads that represent areas of myocardial injury is crucial for effective assessment in critical care scenarios.