What is a primary risk associated with rapid infusions through a central line?

Rapid infusions through a central line can lead to fluid overload and potential heart failure, which is a significant risk. When large volumes of fluid are administered quickly, especially in patients with compromised heart function or existing fluid overload conditions, the cardiovascular system may struggle to accommodate the sudden increase in volume. This can result in elevated blood pressure, increased cardiac workload, and pulmonary edema, ultimately leading to heart failure if not managed appropriately.

In contrast, while infection, catheter displacement, and air embolism are all important considerations in vascular access, they are not the primary concern specifically associated with the rapid infusion of fluids. Infection usually arises from prolonged exposure to the catheter, catheter displacement is more associated with improper securing of the line or patient movement, and air embolism is a rare event that can occur during catheter insertion or manipulation but is less related to the speed of fluid administration through the line. Thus, the risk of rapid infusion primarily relates to cardiovascular complications, making fluid overload and potential heart failure the correct focus in this scenario.