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Related Concept Videos

Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

Parentral Nutrition: Centeral and Peripheral Parental Nutrition

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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):
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Enteral Nutrition II: Nasointestinal and Gastrostomy Feeding01:15

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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...
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Drug Delivery: Parenteral Route01:29

Drug Delivery: Parenteral Route

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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.
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Enteral Nutrition I: Orogastric and Nasogastric Feeding01:26

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Enteral nutrition delivers nutrients directly to the stomach or small intestine through a tube. This method is appropriate for patients who cannot eat but still have a functioning digestive system. It is also beneficial for individuals with swallowing difficulties, anorexia, malabsorption, or those who have undergone gastrointestinal (GI) surgery.
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Routes of Drug Administration: Parenteral01:25

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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.
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Drug Delivery: Enteral Route01:18

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The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
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Updated: Aug 12, 2025

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

Wasay A Mohajir1, Stephen J O'keefe2, David S Seres3

  • 1Department of Internal Medicine, Columbia University, New York, NY, USA.

The Medical Clinics of North America
|January 25, 2023
PubMed
Summary
This summary is machine-generated.

Parenteral nutrition (PN) nourishes patients unable to use their gut. This article clarifies PN myths, providing evidence-based knowledge on its use, risks, and management for critically ill patients and those with intestinal failure.

Keywords:
CentralFailureIntestinalMalnutritionNutritionParenteralPeripheralSepsis

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Area of Science:

  • Clinical Nutrition
  • Gastroenterology
  • Critical Care Medicine

Background:

  • Parenteral nutrition (PN) is essential for patients with intestinal failure or gut intolerance.
  • While life-saving, PN carries inherent risks that require careful management.
  • Misconceptions about PN can hinder optimal patient care.

Purpose of the Study:

  • To debunk common myths surrounding parenteral nutrition.
  • To provide evidence-based guidance on PN for clinicians managing complex patients.
  • To cover PN indications, contraindications, feasibility, complications, and long-term care.

Main Methods:

  • Literature review of current evidence on parenteral nutrition.
  • Synthesis of data on PN indications, risks, and management strategies.
  • Expert consensus on best practices for PN therapy.

Main Results:

  • PN is feasible and indicated in specific patient populations.
  • Potential complications include line infections, metabolic disturbances, and gut atrophy.
  • Long-term PN management requires multidisciplinary approach.

Conclusions:

  • Dispelling PN myths enhances clinical practice and patient outcomes.
  • Evidence-based knowledge empowers practitioners in managing PN.
  • Optimizing PN therapy is crucial for patients with intestinal failure.