Intravenous fat emulsion (IVFE), also sometimes called lipid emulsion, is a sterile liquid delivered through an IV that provides:
- Calories: It serves as an energy source for patients who cannot get nutrition orally or through a feeding tube.
- Essential fatty acids: These are crucial for various bodily functions like cell structure and metabolism.
There are two main uses for IVFE:
- Parenteral nutrition (PN): This is when nutrients are delivered directly into the bloodstream, bypassing the digestive system. IVFE is a key component of PN, often used alongside carbohydrates and protein solutions. It typically supplies 20-30% of the total calories in PN.
- Treatment for certain drug overdoses: IVFE can be used as an antidote to bind and trap certain medications, particularly fat-soluble ones, in the bloodstream, preventing them from reaching harmful levels in the body.
Here's a breakdown of some key points about IVFE:
- Composition: It's typically made of soybean oil, egg phospholipids, and glycerin mixed with water.
- Formulations: Different concentrations (e.g., 10%, 20%, 30%) are available, with the higher concentrations used for PN after being mixed with other components.
- Administration: A healthcare professional administers IVFE through a central venous line or a peripheral vein depending on the situation.
- Benefits: Provides essential nutrients and calories, helps with wound healing, and can act as an antidote in specific cases.
- Risks: Potential side effects include allergic reactions, infections, and fat overload in the blood. A doctor will carefully monitor patients receiving IVFE.