Final answer:
Monitoring for unequal pupil size is a priority in clients at risk for increased ICP as it can indicate imminent brain herniation. Other signs include changes in consciousness and Cushing's triad, which includes an increase in systolic blood pressure. Sodium levels should also be regulated to manage cerebral edema.
Step-by-step explanation:
A client at risk for increased intracranial pressure (ICP) requires careful monitoring for symptoms that could indicate a worsening condition. Of the options provided, unequal pupil size is a priority for the nurse to monitor. Unequal pupils can be a sign of increased ICP and potentially imminent brain herniation, which is a medical emergency. It is a direct indicator of neurological status and may reflect pressure on the cranial nerves. Other signs to monitor would include changes in the level of consciousness, headache, vomiting, and seizures among others.
Additionally, while not listed in the options, an increase in systolic blood pressure accompanied by a decreased heart rate and irregular respirations (Cushing's triad) can also indicate increased ICP. Monitoring blood pressure is essential for detecting this triad. Another important aspect is the regulation of the patient's sodium levels (Na+ levels), as imbalances can affect cerebral edema and ICP.