Fundamentals of Nursing Q 525
Which of the following should be included in a plan of care for a client receiving total parenteral nutrition (TPN)?
A. Withhold medications while the TPN is infusing.
B. Change TPN solution every 24 hours.
C. Flush the TPN line with water prior to initiating nutritional support.
D. Keep the client on complete bed rest during TPN therapy.
Correct Answer: B. Change TPN solution every 24 hours.
TPN solutions should be changed every 24 hours in order to prevent bacterial overgrowth due to the hypertonicity of the solution. Because the central venous catheter needs to remain in place for a long time, a strict sterile technique must be used during the insertion and maintenance of the TPN line. The TPN line should not be used for any other purpose. External tubing should be changed every 24 hours with the first bag of the day. In-line filters have not been shown to decrease complications. Dressings should be kept sterile and are usually changed every 48 hours using strict sterile techniques.
Option A: Medication therapy can continue during TPN therapy. Progress of patients with a TPN line should be followed on a flowchart. An interdisciplinary nutrition team, if available, should monitor patients. Weight, complete blood count, electrolytes, and blood urea nitrogen should be monitored often (eg, daily for inpatients). Plasma glucose should be monitored every 6 hours until patients and glucose levels become stable. Fluid intake and output should be monitored continuously. When patients become stable, blood tests can be done much less often.
Option C: Flushing is not required because the initiation of TPN does not require a client to remain on bed rest during therapy. Catheter-related sepsis rates have decreased since the introduction of guidelines that emphasize sterile techniques for catheter insertion and skincare around the insertion site. The increasing use of dedicated teams of physicians and nurses who specialize in various procedures including catheter insertion also has accounted for a decrease in catheter-related infection rates.
Option D: However, other clinical conditions of the client may affect mobility issues and warrant the client’s being on bed rest. Place the client in a semi-Fowler’s or high-Fowler’s position. Maintaining the head of the bed elevated will promote ease in breathing. This position also allows the pooling of fluid in the bases and for gas exchange to be more available to the lung tissue.