Question

What amount of kcal/mL do a 10% lipid emulsion and a 20% lipid emulsion give? Why is this different from what we would expect?

a) 1.0 kcal/mL, 2.0 kcal/mL; Due to differences in emulsification
b) 1.1 kcal/mL, 2.2 kcal/mL; Due to differences in absorption
c) 1.1 kcal/mL, 2.0 kcal/mL; Due to differences in concentration
d) 1.0 kcal/mL, 2.2 kcal/mL; Due to differences in solubility

Answer 1

A 10% lipid emulsion provides 1.0 kcal/mL, while a 20% lipid emulsion provides 2.0 kcal/mL. The difference in kcal/mL is due to differences in concentration, not emulsification, absorption, or solubility.

Step-by-step explanation:

Lipid emulsions are typically used for parenteral nutrition to provide calories and essential fatty acids to patients who cannot consume food orally. The amount of kcal/mL in a 10% lipid emulsion is 1.0 kcal/mL, while a 20% lipid emulsion provides 2.0 kcal/mL.

The difference in calorific value between the two emulsions is due to their different concentrations. The 10% lipid emulsion has a lower concentration of lipids, resulting in a lower energy content. Conversely, the 20% lipid emulsion has a higher concentration of lipids, leading to a higher energy content.

It is important to note that the differences in kcal/mL between the emulsions are not due to differences in emulsification, absorption, solubility, or any other factors listed in the options given.