What type of fluid is typically anticipated for a client suspected of having increased ICP?

When managing a client suspected of having increased intracranial pressure (ICP), the goal is to ensure adequate cerebral perfusion while avoiding further complications. The correct choice, 0.9% NaCl, is an isotonic solution that helps maintain electrolyte balance and hydration without causing significant shifts in fluid between intracellular and extracellular compartments. This is critical because hypotonic solutions, like 0.45% NaCl, can exacerbate cerebral edema, potentially increasing ICP.

Using 0.9% NaCl helps maintain blood volume and pressure, which is important for adequate perfusion to the brain. While other options, such as D5W (which can provide free water), might not effectively support the necessary osmolarity in the case of increased ICP, 0.9% NaCl remains a safe and appropriate choice, helping to mitigate risks associated with fluid overload or disruption of osmotic balance in cerebral tissues.