One is not the indication of total parenteral nutrition ?
**Core Concept**
Total parenteral nutrition (TPN) is a life-sustaining treatment that provides essential nutrients to patients who cannot receive adequate nutrition through the gastrointestinal tract. It involves the administration of a mixture of macronutrients and micronutrients intravenously.
**Why the Correct Answer is Right**
The correct answer is related to the contraindications of TPN. One of the key contraindications of TPN is the presence of a functioning gastrointestinal tract. Patients who have a functioning gastrointestinal tract can receive enteral nutrition, which is generally preferred over TPN due to its lower risk of complications. Enteral nutrition involves the delivery of nutrients directly into the gastrointestinal tract through a feeding tube.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because it is not a contraindication of TPN. In fact, TPN is often used in patients with short bowel syndrome or other conditions that make it difficult to absorb nutrients from the gastrointestinal tract.
* **Option B:** This option is incorrect because it is not a contraindication of TPN. While obesity can increase the risk of complications from TPN, it is not a contraindication for its use.
* **Option C:** This option is incorrect because it is not a contraindication of TPN. In fact, TPN is often used in patients who require prolonged periods of intravenous nutrition.
**Clinical Pearl / High-Yield Fact**
It is essential to remember that TPN should only be initiated in a patient who has a clear indication for its use and who has been properly evaluated for the potential risks and benefits. A thorough evaluation of the patient's nutritional needs and the presence of any contraindications is crucial before starting TPN.
**Correct Answer:** D.