High School

2-in-1 Parenteral Nutrition Order:

- Dextrose 370 grams
- Amino acids 105 grams
- Sodium chloride 32 mEq
- Sodium acetate 12 mEq
- Potassium 65 mEq
- Magnesium sulfate 10 mEq
- Phosphate 24 mmol
- Calcium 12 mEq
- Multivitamins (MVI) 10 mL
- Trace elements 1 mL
- Famotidine 10 mg
- Sterile water qs ad 2000 mL

The combined calcium and phosphorus in a PN should not exceed 45 mEq/L. If the PN order shown contains 2 mEq PO4/mmol, what is the combined calcium and phosphorus (mEq/L) in the PN order?

A. 18 mEq/L
B. 30 mEq/L
C. 48 mEq/L
D. 60 mEq/L
E. 72 mEq/L

Answer :

Final answer:

The combined milliequivalents of calcium and phosphorus in the Parenteral Nutrition order is 60 mEq/L.

Explanation:

To answer this question, we need to calculate the milliequivalents of calcium and phosphate in the Parenteral Nutrition (PN) order. Given that the quantity of calcium is 12 mEq and the quantity of phosphate is 24 mmol, we need to convert mmol of phosphate to mEq. We use the fact that 1 mmol of phosphate equals 2 mEq (as the question suggests), therefore, 24 mmol of phosphate equals 48 mEq.

Hence, the combined milliequivalents of calcium and phosphorus are the sum of 12 mEq of calcium and 48 mEq of phosphate, giving us 60 mEq/L total (which corresponds to answer option D).

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