What must be done by the practical nurse prior to the first infusion of the TPN solution?

What must be done by the practical nurse prior to the first infusion of the TPN solution?

• A. Educate Mr. Ford about the PICC line and TPN.
• B. Warm the solution for a minimum of 3 hours.
• C. Add ordered electrolytes and trace elements to the solution.
• D. Ensure correct catheter placement is verified by chest X-ray.

Answer: (D)

Before starting TPN through a central line, confirming catheter placement with a chest X-ray is essential. This imaging verifies that the catheter tip is in the appropriate central venous location (usually the lower superior vena cava near the cavoatrial junction) so that the solution infuses into the central circulation safely. It also checks for any pneumothorax that could have occurred during line placement. Without this verification, infusing TPN risks administration into the wrong vessel or causing chest complications, which can be serious. Educating about the PICC line and TPN is important for ongoing care, but it doesn’t address immediate safety of the first infusion. Warming the solution isn’t appropriate, as TPN should be used at safe temperatures, not heated. Adding electrolytes and trace elements is a pharmacy-managed step and should not be done at the bedside before the first infusion.

Before starting TPN through a central line, confirming catheter placement with a chest X-ray is essential. This imaging verifies that the catheter tip is in the appropriate central venous location (usually the lower superior vena cava near the cavoatrial junction) so that the solution infuses into the central circulation safely. It also checks for any pneumothorax that could have occurred during line placement. Without this verification, infusing TPN risks administration into the wrong vessel or causing chest complications, which can be serious. Educating about the PICC line and TPN is important for ongoing care, but it doesn’t address immediate safety of the first infusion. Warming the solution isn’t appropriate, as TPN should be used at safe temperatures, not heated. Adding electrolytes and trace elements is a pharmacy-managed step and should not be done at the bedside before the first infusion.