What does a right-sided EKG (V4R) assess for?

A right-sided EKG, specifically lead V4R, is utilized to evaluate the right ventricle of the heart. This lead is positioned on the right side of the chest and is particularly useful in identifying conditions affecting the right side, such as right ventricular dysfunction or ischemia.

In the context of myocardial infarctions, leads on the right side provide critical information, especially in cases where a patient may present with inferior wall MIs, particularly those that are associated with right ventricular involvement. These situations can occur in instances where there is occlusion of the right coronary artery, which can lead to both inferior wall ischemia as well as right ventricular dysfunction.

In summary, V4R is essential for assessing the function and pathological conditions of the right ventricle, making it the appropriate selection for identifying right ventricular dysfunction. This is crucial in the management and treatment of patients with potential cardiac issues, allowing for targeted interventions that address the right heart's performance and oxygenation needs.