A patient in residential care receives a parenteral formula of D40W of 500 ml in one day. The kilocalories delivered are

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Study for the eatrightPREP Domain 2 Dietetics Exam. Use flashcards and multiple-choice questions, with hints and explanations for each. Prepare confidently for your exam!

Multiple Choice

A patient in residential care receives a parenteral formula of D40W of 500 ml in one day. The kilocalories delivered are

Explanation:
Energy in this parenteral formula comes from dextrose. Dextrose 40% w/v means 40 g of dextrose per 100 mL. For 500 mL, that’s 200 g of dextrose. Dextrose provides about 3.4 kcal per gram, so 200 g × 3.4 kcal/g = 680 kcal delivered in one day. Since this formulation is D40W in 500 mL, 680 kcal is the total energy; fats or amino acids would add more calories if present, but they aren’t part of this specific mixture.

Energy in this parenteral formula comes from dextrose. Dextrose 40% w/v means 40 g of dextrose per 100 mL. For 500 mL, that’s 200 g of dextrose. Dextrose provides about 3.4 kcal per gram, so 200 g × 3.4 kcal/g = 680 kcal delivered in one day. Since this formulation is D40W in 500 mL, 680 kcal is the total energy; fats or amino acids would add more calories if present, but they aren’t part of this specific mixture.

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