What is used in intravenous administration to deliver triglycerides and calories?

Emulsions are the correct choice for intravenous administration to deliver triglycerides and calories because they consist of a mixture of oil and water, allowing fat-soluble nutrients to be delivered effectively into the bloodstream. In the context of parenteral nutrition, emulsions are specifically formulated to provide essential fatty acids and calories that are crucial for patients who cannot intake food orally or via enteral feeding methods.

When providing intravenous nutrition, especially in total parenteral nutrition (TPN) formulations, emulsions are used because they can be administered safely and efficiently. Their stable formulation allows for the delivery of lipids without the risk of embolism, which can occur with less stable mixtures. This characteristic makes emulsions particularly valuable for patients requiring long-term intravenous feeding.

Other types of formulations, such as elixirs or solutions, typically lack the fat content needed for delivering triglycerides, while suspensions are mixtures that do not have the stable consistency required for intravenous administration. Thus, emulsions stand out as the appropriate choice for delivering both calories and triglycerides in intravenous therapy.