A nurse is providing care for a client who is at risk of cerebral aneurysm rupture. Which of the following interventions should the nurse include in the care plan?

Choice A rationale Bright lights can increase stimulation and potentially elevate intracranial pressure (ICP) due to increased metabolic demand and cerebral blood flow. Maintaining a dim, calm environment helps to reduce environmental stimuli, promote rest, and minimize fluctuations in cerebral perfusion pressure, thereby reducing the risk of aneurysm rupture. Choice B rationale Frequent repositioning is important for skin integrity and preventing complications like pneumonia, but it must be done carefully to avoid sudden movements or activities that could increase ICP. Repositioning every shift might not be frequent enough to prevent skin breakdown, but more frequent turning needs to be balanced with the risk of ICP elevation. Choice C rationale Elevating the head of the bed to 30-45 degrees promotes venous drainage from the brain, which helps to lower ICP. This position also optimizes cerebral perfusion pressure and reduces the risk of rupture by minimizing intracranial volume and pressure fluctuations, which are critical for clients at risk of cerebral aneurysm rupture. Choice D rationale Administering hypotonic intravenous solutions would decrease serum osmolality, causing fluid to shift from the intravascular space into brain cells, thereby increasing cerebral edema and potentially raising ICP. Isotonic solutions are generally preferred to maintain intravascular volume without exacerbating cerebral edema in neurological conditions.