NAPLEX (North American Pharmacist Licensure Examination) Practice Exam

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Which option represents the kcal/mL for ILE 20% in parenteral nutrition?

  1. 3.4 kcal/gram

  2. 4 kcal/gram

  3. 2 kcal/mL

  4. 1.1 kcal/mL

The correct answer is: 2 kcal/mL

In parenteral nutrition, Intralipid Emulsion (ILE) 20% is a lipid emulsion provided as a source of calories and essential fatty acids. The caloric content of lipids is 9 kcal/gram, and ILE 20% contains 20 grams of fat per 100 mL. Therefore, the calculation for the kcal/mL of ILE 20% is as follows: 20 grams * 9 kcal/gram = 180 kcal 180 kcal / 100 mL = 1.8 kcal/mL Since ILE 20% provides approximately 1.8 kcal/mL, the closest option among the choices provided is 2 kcal/mL (option C), making it the correct answer.

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