Final answer:
The nurse should report hypernatremia as an adverse effect of mannitol administration in a client with increased intracranial pressure (ICP).
Step-by-step explanation:
The nurse should report hypernatremia as an adverse effect of mannitol administration in a client with increased intracranial pressure (ICP).
Mannitol is an osmotic diuretic that promotes water loss by osmosis. It works by attracting water and increasing urine output. However, it also increases the excretion of sodium, leading to hypernatremia (increased sodium levels).
Hypernatremia can cause neurological symptoms such as confusion, restlessness, and seizures. Thus, the nurse should promptly report this adverse effect to the healthcare provider for appropriate management.