NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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How many kcal/mL does ILE 30% provide in parenteral nutrition?

1.1 kcal/mL
2 kcal/mL
3 kcal/mL
3.4 kcal/g

The correct answer is: 3 kcal/mL

ILE 30% stands for Intralipid Emulsion 30%, which is a type of lipid emulsion used in parenteral nutrition. The concentration of ILE 30% refers to the amount of fat in the emulsion. For ILE 30%, it means that 30% of the emulsion is fat. To calculate the kcal/mL that ILE 30% provides, we need to consider that fat provides 9 kcal/g. Since ILE 30% contains 30% fat, we can multiply 30% by the caloric density of fat to determine the calories provided per gram. Therefore, 30% x 9 kcal/g = 2.7 kcal/g. As ILE 30% is usually administered in a concentration of 3 g fat per mL, we can further calculate the total calories per mL: 2.7 kcal/g x 3 g = 8.1 kcal/mL. However, in clinical practice, this value is often rounded up to the nearest whole number, which makes the correct answer 3 kcal/mL (option C). This caloric density is important to ensure that patients on parenteral nutrition receive an adequate amount of calories to meet their energy needs.