College

The pharmacy receives the following PN order. How many milliliters of sodium acetate 16.4% (2 mEq/mL) should be added to the PN? (Answer must be numeric; no units or commas.)

**Item/Quantities:**

- Dextrose 270 g
- Amino acids 60 g
- Sodium chloride 38 mEq
- Sodium acetate 16 mEq
- Potassium 40 mEq
- Magnesium sulfate 10 mEq
- Phosphate 21 mmol
- Calcium 4.45 mEq
- MVI-12 5 mL
- Trace elements 1 mL
- Vitamin K-1 0.5 mg
- Famotidine 10 mg
- Regular insulin 40 units

**Sterile water qs ad 980 mL**

Answer :

Final answer:

To add 16 mEq of sodium acetate to the PN using a 16.4% solution that provides 2 mEq/mL, the pharmacy should add 8 milliliters of sodium acetate.

Explanation:

The student has asked how many milliliters of sodium acetate 16.4% (2 mEq/mL) should be added to the parenteral nutrition (PN) formula to achieve a dose of 16 mEq. Since the sodium acetate solution provides 2 mEq of sodium acetate per mL, the calculation is straightforward:

Amount in mEq needed ÷ Concentration in mEq/mL = Volume in mL

Therefore:

16 mEq ÷ 2 mEq/mL = 8 mL

The pharmacy should add 8 milliliters of sodium acetate to the PN.

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