Parenteral nutrition (PN) is a method of delivering nutrients directly into the bloodstream through a vein, bypassing the digestive tract. It is used in cases where the gastrointestinal tract is not functional or cannot be used for nutritional support, such as in patients who have had major surgery, have severe inflammatory bowel disease, or are critically ill and unable to eat or absorb nutrients orally.
PN is typically administered through a vein in the arm, leg, or chest and is delivered via a central venous catheter or a peripheral venous catheter. The solution contains a combination of carbohydrates, proteins, fats, vitamins, minerals and electrolytes. Parenteral nutrition is usually given continuously over a period of days or weeks and is adjusted according to the patient’s needs.
It’s important to note that Parenteral nutrition is a specialized and complex form of therapy and should be administered only under the supervision of trained healthcare professionals with experience in parenteral nutrition. It also carries certain risks such as infection, blood clots and metabolic disturbances, so close monitoring is necessary to ensure the safety and efficacy of the therapy.