Which statement about IVFE composition in the United States is correct?

Which statement about IVFE composition in the United States is correct?

• A. IVFEs are composed mainly of olive oil
• B. IVFEs are composed mainly of soybean oils
• C. IVFEs contain no linoleic acid
• D. IVFEs are composed of equal parts soybean and corn oil

Answer: (B)

In the United States, intravenous fat emulsions used in nutrition support are primarily soybean oil–based. This base oil provides essential fatty acids, notably linoleic acid, and has been the standard due to historical availability and cost. That’s why the statement that IVFEs are composed mainly of soybean oils is the best choice. Olive oil– or corn oil–based emulsions exist in various contexts, but they are not the primary US standard. The claim that these emulsions contain no linoleic acid is incorrect because soybean oil supplies this essential fatty acid, and the idea of equal parts soybean and corn oil doesn’t reflect typical formulation, which centers on a dominant oil rather than a 1:1 mix.

In the United States, intravenous fat emulsions used in nutrition support are primarily soybean oil–based. This base oil provides essential fatty acids, notably linoleic acid, and has been the standard due to historical availability and cost. That’s why the statement that IVFEs are composed mainly of soybean oils is the best choice. Olive oil– or corn oil–based emulsions exist in various contexts, but they are not the primary US standard. The claim that these emulsions contain no linoleic acid is incorrect because soybean oil supplies this essential fatty acid, and the idea of equal parts soybean and corn oil doesn’t reflect typical formulation, which centers on a dominant oil rather than a 1:1 mix.