What is the purpose of lead V1 in an EKG?

Lead V1 plays a significant role in monitoring the electrical activity of the heart, particularly the right side. It is positioned on the right side of the sternum at the fourth intercostal space, which allows it to provide clear insight into the electrical events occurring in the right ventricle and neighboring structures.

The morphology of the QRS complex in lead V1 is highly indicative of right ventricular activity. For instance, any right-sided hypertrophy or pathology can show changes in this lead. Additionally, V1 is critical in identifying conditions such as right bundle branch block, where the conduction through the right bundle is delayed, which would alter the expected patterns seen in this lead.

This position and its resulting data make V1 crucial for clinical diagnosis and assessment regarding the performance and health of the right ventricle. Understanding thisLead is essential for healthcare providers to accurately interpret EKGs and assess heart function.