What is the function of a clamp on a CVAD?

What is the function of a clamp on a CVAD?

• A. To allow for rapid infusion of fluids
• B. To prevent blood flow back into the catheter when not in use
• C. To ensure constant pressure during administration
• D. To maintain temperature of the fluids

Answer: (B)

The function of a clamp on a Central Venous Access Device (CVAD) is primarily to prevent blood from flowing back into the catheter when it is not in use. When the CVAD is not actively being infused or accessed, the clamp creates a seal that stops blood from moving into the catheter, which is crucial to minimize the risk of thrombosis or infection. This mechanism helps ensure that the catheter remains patent and ready for use whenever needed, maintaining the integrity of the vascular access. Other options may represent functions related to fluid administration, but they do not accurately describe the specific purpose of the clamp. For example, while rapid infusion of fluids may require specific devices or techniques, it is not a function of the clamp itself. Similarly, constant pressure during administration is regulated by other factors in the infusion system, and temperature maintenance is typically managed through external means rather than the clamp.

The function of a clamp on a Central Venous Access Device (CVAD) is primarily to prevent blood from flowing back into the catheter when it is not in use. When the CVAD is not actively being infused or accessed, the clamp creates a seal that stops blood from moving into the catheter, which is crucial to minimize the risk of thrombosis or infection. This mechanism helps ensure that the catheter remains patent and ready for use whenever needed, maintaining the integrity of the vascular access.

Other options may represent functions related to fluid administration, but they do not accurately describe the specific purpose of the clamp. For example, while rapid infusion of fluids may require specific devices or techniques, it is not a function of the clamp itself. Similarly, constant pressure during administration is regulated by other factors in the infusion system, and temperature maintenance is typically managed through external means rather than the clamp.