Answer:
2nd Rib!
Step-by-step explanation:
When placing chest electrodes, you feel for the angle of Louis to locate the second rib (2nd rib). The angle of Louis, also known as the sternal angle or manubriosternal junction, is an anatomical landmark formed by the junction of the manubrium (the upper part of the sternum or breastbone) and the body of the sternum. It is typically found at the level of the second rib and is used as a reference point for locating specific anatomical landmarks on the chest and for proper electrode placement in medical procedures like electrocardiography (ECG or EKG). Hope this helps!