Where is the chest electrode V2 typically placed?

The correct placement for the chest electrode V2 is at the fourth intercostal space at the left margin of the sternum. This positioning is vital for accurately recording electrical activity from the heart, particularly from the anterior and left regions of the heart.

Placing V2 at this position allows better visualization of the territories supplied by the left anterior descending artery and various heart conditions, such as anterior myocardial infarctions. The location is standardized so that healthcare professionals can consistently place electrodes in the same anatomical landmarks across different patients, ensuring reliable and comparable EKG results.

The incorrect options describe electrode placements that do not align with the established protocols for EKG lead placement, which could lead to misinterpretation of the heart's electrical activity. For instance, the second intercostal space may be more appropriate for lead V1, while the fifth intercostal space on the midclavicular line would be the correct positioning for lead V4, not V2.