Which term refers to the administration of nutrients through a catheter inserted into a vein?

The term that refers to the administration of nutrients through a catheter inserted into a vein is parenteral nutrition. This method involves delivering nutrition directly into the bloodstream, bypassing the digestive system. It is used when a patient is unable to obtain sufficient nutrition through oral intake or has a functioning gastrointestinal tract that cannot be utilized for absorption.

Parenteral nutrition is particularly useful in situations such as severe gastrointestinal disorders, bowel obstructions, or conditions that impair the ability to eat or absorb nutrients effectively. This mode allows clinicians to closely monitor and adjust the nutrient composition according to the patient’s specific needs, ensuring that essential vitamins, minerals, amino acids, and carbohydrates are delivered efficiently.

In contrast, enteral nutrition involves providing nutrients through the gastrointestinal tract via feeding tubes, which is an entirely different route of administration. Aspiration refers to the act of drawing in or out of a substance, typically used in the context of withdrawing fluid from a body cavity. Paralysis indicates loss of muscle function, which does not pertain to nutritional administration. Thus, parenteral nutrition is the proper term used for intravenous nutrient delivery.