A patient has an elevated serum osmolality and a serum sodium level of 159 mEq/L. The most beneficial IV fluid would be:

Dextrose 5% in water (D5W).

Explanation

•The patient is in a hypertonic state and should not receive hypertonic fluid. D5W is the only isotonic fluid and is the correct choice. Once isotonic fluids are given, sodium levels should go down from dilution alone.

Incorrect options:

•D5NS, D10W, and D5LR are all hypertonic fluids.

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