The EKG electrode for lead V3R should be placed in the fourth intercostal space on the right side of the chest in infants to assess the heart's electrical activity, especially for diagnosing congenital issues.
The correct placement for the EKG electrode for lead V3R on an infant is the fourth intercostal space on the right side of the chest. This location is specified for capturing the right-sided chest leads in an ECG, which aids in providing a more comprehensive view of the heart's electrical activity, particularly in the case of suspected right ventricular or atrial abnormalities. By placing an electrode specifically at lead V3R on the right side, doctors can gather essential information for diagnosing congenital heart conditions that are more commonly encountered in infants than adults.