Final answer:
In the case of hypovolemia, the nurse would anticipate an isotonic solution order due to its equal osmolarity with blood serum, which prevents cellular damage by maintaining osmotic balance.
Step-by-step explanation:
When treating a client with hypovolemia, it is essential to administer a solution that will correct the fluid deficit without causing cellular damage. The nurse would correctly anticipate an order for an isotonic solution. Isotonic solutions, such as 0.9% sodium chloride (saline), are crucial because they have the same osmolarity as blood serum, meaning there is no net movement of water into or out of the body's cells.
This equilibrium prevents the complications seen with either hypotonic or hypertonic solutions; a hypotonic solution would cause cells to swell and potentially burst, while a hypertonic solution would draw water out of cells, causing them to shrink.
Therefore, the absence of plasma expanders, an isotonic solution ensures that the intravascular volume is augmented without disrupting the osmotic balance, supporting the vascular system effectively.