Which statement describes a key nursing consideration for TPN/PPN?

• A. Ensure vein patency and line patency, monitor for extravasation, use a filter on the line
• B. Do not monitor liver function
• C. Avoid any glucose monitoring
• D. Do not administer blood products with TPN

Answer: (A)

Managing the IV line is crucial when delivering TPN/PPN because these solutions are highly concentrated and administered through a dedicated, patent line. Keeping the vein and line patent ensures the nutrition infuses as prescribed and reduces the risk of interruptions or complications. Because TPN is hypertonic, extravasation can cause serious tissue injury, so nurses actively monitor the IV site for signs of infiltration, swelling, or pain. Using a filter on the line helps trap particulate matter and lipid droplets, protecting the catheter and the patient from emboli or line occlusion.

Liver function should be monitored during TPN because long-term or high-dose TPN can contribute to hepatic complications. Glucose monitoring is essential since TPN provides a significant dextrose load that can affect blood sugar, requiring timely adjustments. Blood products are typically not given through the same TPN line; they should use a separate IV line or be administered with careful flushing to avoid incompatibilities, which is why that option is not the best single nursing consideration.