Which radiographic landmark confirms the correct placement of a UVC in the lower chest/upper abdomen region?

• A. Tip at the level of the diaphragm.
• B. Tip in the stomach.
• C. Tip in the right atrium.
• D. Tip near the hepatic veins.

Answer: (A)

Placing a UVC correctly relies on a radiographic landmark that locates the tip near where central venous blood enters the heart. When the tip sits at the level of the diaphragm, it is in the lower portion of the IVC close to the cavoatrial junction, which is the appropriate central venous position for a UVC in neonates. This position allows meds and fluids to reach the central circulation safely and quickly while minimizing risks. If the tip appears in the stomach, the catheter is not in the venous system and infusion would go into the GI tract. If the tip is in the right atrium, it’s higher risk for arrhythmias and perforation. If it’s near the hepatic veins, the catheter is mispositioned into hepatic venous anatomy, not the central venous system. Therefore, the diaphragm level best indicates correct placement.