Parenteral Nutrition

Parenteral nutrition is the intravenous delivery of nutrients when the gastrointestinal tract cannot adequately support digestion, absorption, or feeding. It supplies a sterile formulation of carbohydrates, amino acids, lipids, electrolytes, vitamins, and trace elements through a peripheral or central venous catheter, thereby bypassing the normal digestive pathway and supporting energy balance and tissue maintenance. In clinical care, parenteral nutrition can support patients with intestinal failure, severe malnutrition, or prolonged inability to eat, but requires individualized composition and careful monitoring of fluid status, blood glucose, electrolytes, and liver function to reduce complications and guide transition back to enteral or oral feeding.

Parenteral Nutrition - Related Videos

Research

JoVE Journal - Medicine

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition

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2019

Here, we present a protocol for a study comparing the efficacy, safety, and delivery of olive-oil-based 3CB and soybean-oil-based CoB formulations in adults requiring parenteral nutrition. The results revealed that olive-oil-based 3CBs is non-inferior and well tolerated compared to soybean formulations.

Education

JoVE Core - Pharmacology

Parenteral Anesthetics: Overview

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2024

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.

Routes of Drug Administration: Parenteral

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2023

The administration of drugs via parenteral routes allows for direct drug introduction into the systemic circulation, resulting in high bioavailability because the medication bypasses the harsh conditions of the gastrointestinal tract and hepatic metabolism. The intravenous route (IV) of drug administration can be further categorized into two types. The bolus injection administers the entire dose rapidly, while an intravenous infusion slowly delivers smaller doses steadily. The IV route is often...

Drug Delivery: Parenteral Route

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2024

The parenteral route is a critical method of drug administration. It delivers compounds directly into the systemic circulation and bypasses the gastrointestinal tract. This approach is particularly advantageous for drugs that exhibit poor absorption or instability when administered orally. There are three primary parenteral routes: intravenous (IV), intramuscular (IM), and subcutaneous (SC). The IV route introduces the drug directly into the bloodstream, ensuring immediate action. The IM route...

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

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2025

Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption. PN can be administered through two primary routes: 1. Central Parenteral Nutrition (CPN): CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...

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