Final answer:
The student would expect to observe a low serum sodium level in a child with hypotonic dehydration. Hypotonic dehydration occurs when there is a greater loss of solute (such as sodium) compared to water, resulting in a dilution of sodium in the body. Monitoring fluid intake and managing dehydration is important.
Step-by-step explanation:
In the case of hypotonic dehydration, the student would expect to observe a low serum sodium level. Hypotonic dehydration occurs when there is a greater loss of solute (such as sodium) compared to water. This leads to a dilution of sodium in the body, resulting in a low serum sodium level.
For example, if the normal range for serum sodium is 135-145 mEq/L, the student may expect to observe a value below this range, such as 130 mEq/L.
It's important for the nurse to monitor the child's fluid intake and manage the dehydration appropriately, which may involve administering fluids with a higher sodium concentration.