A nurse auscultates a client’s heart sounds during an initial assessment. The nurse listens to sounds at the angle of Louis on the client’s chest. Which best describes this location?

• The joint of the sternal body and the manubrium
• The indentation on the superior portion of the manubrium
• The level between the 4th and 5th intercostal space on the left side
• The point where the floating ribs meet the sternum