A nurse is caring for a client who has acute kidney injury and has been prescribed total parenteral nutrition (TPN). When educating the client on the use of TPN, which of the following information should the nurse include?
A.
The TPN is needed to bypass your gastrointestinal tract.
B.
The TPN will have higher levels of vitamins than the recommended daily intake.
C.
The TPN will ensure that your glucose level stays within the expected range.
D.
The TPN will be higher in fats and protein, but lower in carbohydrates.
The Correct Answer and Explanation is:
The correct answer is A: The TPN is needed to bypass your gastrointestinal tract.
Explanation
Total Parenteral Nutrition (TPN) is a method of feeding that provides nutrients directly into the bloodstream through an intravenous (IV) line. This approach is necessary when the gastrointestinal (GI) tract cannot be used for nutrient absorption due to conditions like acute kidney injury, severe gastrointestinal disorders, or other medical issues that impair nutrient intake or absorption.
Option A: The TPN is needed to bypass your gastrointestinal tract.
This is correct because TPN is used when a patient cannot receive adequate nutrition through oral intake or enteral feeding (e.g., via a feeding tube). In cases of acute kidney injury, the GI tract may be compromised or unsuitable for nutrient absorption, necessitating TPN to deliver essential nutrients directly into the bloodstream. This bypasses the GI tract entirely, ensuring that the patient receives the necessary nutrients.
Option B: The TPN will have higher levels of vitamins than the recommended daily intake.
This is incorrect. TPN solutions are carefully formulated to meet the individual patient’s nutritional needs, including appropriate levels of vitamins and minerals. Excessive vitamins could lead to toxicity or imbalances, so the composition of TPN is closely monitored and tailored to the patient’s specific requirements.
Option C: The TPN will ensure that your glucose level stays within the expected range.
This is misleading. While TPN can be formulated to manage blood glucose levels by controlling carbohydrate content, it does not guarantee that glucose levels will always stay within the expected range. Patients receiving TPN need regular monitoring of glucose levels to adjust the TPN formulation as needed to manage blood sugar effectively.
Option D: The TPN will be higher in fats and protein, but lower in carbohydrates.
This is not necessarily true. The composition of TPN can vary widely based on the patient’s needs. TPN formulations typically include a balanced mix of carbohydrates, proteins, and fats. The specific ratio depends on the individual’s nutritional requirements and underlying health conditions.
In summary, the primary purpose of TPN is to provide nutrition when the GI tract is non-functional, making Option A the most accurate answer.