How can hypertension affect CVAD function?

• A. It decreases the risk of infection
• B. It may increase the risk of catheter displacement
• C. It has no relevance to CVAD function
• D. It only causes swelling at the site

Answer: (B)

Hypertension can significantly impact the function of a Central Venous Access Device (CVAD) by increasing the risk of catheter displacement. High blood pressure creates increased intravascular pressure within the bloodstream, which can put additional strain on the CVAD and its fixation mechanisms. This strain may result in catheter movement from its optimal position, leading to potential malpositioning and functional issues.

When a CVAD is displaced, it may not effectively deliver medication or fluids, and could even lead to complications such as thrombus formation or increased risk of vascular injury. This highlights the importance of monitoring patients with hypertension closely for any signs of CVAD malfunction that may arise due to elevated blood pressure.

The implications of hypertension on CVAD function underscore the need for healthcare professionals to assess and manage blood pressure in patients with these devices to ensure the continued efficacy and safety of the central venous access.