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Related Concept Videos

Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

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,...
Routes of Drug Administration: Parenteral01:25

Routes of Drug Administration: Parenteral

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...
Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices01:28

Parenteral Drug Delivery Systems: Injectables, Implants, and Infusion Devices

Parenteral drug delivery systems play a crucial role in modern therapeutics by enabling the direct administration of drugs into the systemic circulation, bypassing the gastrointestinal tract. These systems are particularly valuable for poorly absorbed oral medications that are unstable in the digestive environment or require rapid onset or sustained therapeutic levels. Delivery is achieved through intravenous, intramuscular, or subcutaneous routes, each selected based on the drug's properties...
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding01:15

Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding

Enteral nutrition encompasses various methods of delivering nutrition directly to the gastrointestinal (GI) tract, bypassing traditional oral intake. It is particularly beneficial for patients who cannot eat by mouth but have a functioning digestive system. Key methods include nasointestinal feeding, gastrostomy, and jejunostomy, each suited to different clinical scenarios based on the patient's needs and condition.
Nasointestinal Feeding
Nasointestinal feeding involves placing a tube through...
Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

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.

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Related Experiment Video

Updated: Jun 17, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
04:53

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

Published on: September 20, 2019

Amino acids - Guidelines on Parenteral Nutrition, Chapter 4.

J Stein1, H J Boehles, I Blumenstein

  • 1Dept. Internal Medicine, University of Frankfurt, Germany.

German Medical Science : GMS E-Journal
|January 6, 2010
PubMed
Summary

Parenteral nutrition (PN) requires amino acid (AA) solutions to reduce protein breakdown and boost synthesis. Specific AA formulations and dosages are recommended based on patient metabolism and conditions, ensuring optimal nutrient utilization.

Keywords:
amino acid metabolism (first pass)amino acidsbranched-chain amino acids (BCAA)dipeptide

Related Experiment Videos

Last Updated: Jun 17, 2026

A Clinical Trial Assessing the Safety, Efficacy, and Delivery of Olive-Oil-Based Three-Chamber Bags for Parenteral Nutrition
04:53

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

Published on: September 20, 2019

Area of Science:

  • Clinical Nutrition
  • Metabolic Disorders
  • Parenteral Nutrition

Background:

  • Parenteral nutrition (PN) necessitates strategies to minimize protein catabolism and enhance protein synthesis.
  • Amino acid (AA) solutions are integral to PN, with standard and specialized formulations available.
  • Appropriate AA intake and energy provision are crucial for effective nutrient utilization in PN.

Purpose of the Study:

  • To outline recommendations for amino acid (AA) administration in parenteral nutrition (PN).
  • To define optimal AA dosages and nutrient-energy ratios for various patient populations.
  • To clarify the role of specific amino acids (e.g., glutamine, arginine, BCAA) in PN.

Main Methods:

  • Review of current guidelines and evidence regarding amino acid (AA) use in parenteral nutrition (PN).
  • Analysis of recommended AA intake levels (g/kg/day) for adult patients with normal and critical metabolism.
  • Evaluation of nitrogen-to-calorie ratios and the use of specialized AA solutions.

Main Results:

  • General AA intake recommendation for adults is 0.8 g/kg/day, adjustable to 1.2-2.5 g/kg/day based on metabolic status.
  • Recommended nitrogen-to-calorie ratios range from 1:130 to 1:170 (g N/kcal) or 1:21 to 1:27 (g AA/kcal).
  • Specific recommendations exist for glutamine in critically ill patients and BCAA-enriched solutions for hepatic encephalopathy.

Conclusions:

  • Parenteral nutrition (PN) requires careful selection and dosing of amino acid (AA) solutions for optimal patient outcomes.
  • Specialized AA formulations are indicated for specific metabolic conditions and critical illnesses.
  • Further research is needed to establish definitive recommendations for certain amino acids (e.g., arginine) and patient groups.