Total Parenteral Nutrition (TPN): Who Needs It and Why?

TPN (total parenteral nutrition) is given to patients who are unable to get adequate nutrition from their diet alone. This can be due to a variety of factors, including:

* Surgery: TPN may be given to patients who have undergone major surgery and are unable to eat for a period of time.

* Medical conditions: TPN may be given to patients with medical conditions that make it difficult or impossible to eat, such as Crohn's disease, ulcerative colitis, or cancer.

* Nutritional deficiencies: TPN may be given to patients who have nutritional deficiencies that cannot be corrected through diet alone.

TPN is typically given through a central venous catheter (CVC), which is a thin tube that is inserted into a large vein in the chest. The CVC allows for the delivery of nutrients directly into the bloodstream.

TPN is a complex and potentially dangerous therapy, so it is only used when other methods of nutrition are not possible.