A client is scheduled for a test that requires an NPO status and has been ordered 5% dextrose in water (D5W). The nurse understands which of the following to be the best rationale for this action?
A) Isotonic solutions maintain body fluid balance.
B) Hypotonic solutions replenish the cells.
C) Hypotonic solutions reduce need for circulatory fluids.
D) Hypertonic solutions replace lost fluids.
A
Feedback:
Isotonic solutions, such as D5W, are administered for maintenance of fluid balance. Hypotonic solutions do provide fluid to the cells, but this is not the purpose for D5W. Hypertonic solutions are used to pull fluid into the blood vessels and are not used to replace lost fluids.
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