A life-threatening complication of umbilical venous catheter placement is:

• A. Cardiac Tamponade
• B. Pneumothorax
• C. Infection
• D. Thrombosis

Answer: (A)

The danger here is that a umbilical venous catheter can injure the heart or the lining around the heart. If the catheter tip irritates or perforates the heart or enters the pericardial space, blood can rapidly leak into that space. This creates a pericardial effusion that compresses the heart, preventing it from filling properly and cutting off blood flow to the body. In a newborn, this can lead to sudden and life-threatening shock if not recognized and treated immediately. That immediacy and potential for rapid deterioration is what makes this a life-threatening complication.

Infections and clotting problems can occur with any central line, but they typically develop over time rather than cause an abrupt collapse of cardiac function. Pneumothorax is more commonly associated with lines inserted near the chest or with arterial access, rather than a correctly placed umbilical venous catheter.