A nurse is teaching a newly licensed nurse about the risk factors for subarachnoid hemorrhage (SAH). What should the nurse include in the teaching?

Choice A rationale
While a CT angiogram can indeed reveal fractures within the skull or spine, this is not its primary purpose in the context of a subarachnoid hemorrhage. The main goal is to visualize the blood vessels in the brain.
Choice B rationale
A CT angiogram does not primarily reveal overproduction of cerebrospinal fluid (CSF). It is used to visualize the blood vessels in the brain.
Choice C rationale
While a CT angiogram can show areas of edema within the brain tissue, this is not its main purpose in the context of a subarachnoid hemorrhage. The primary goal is to visualize the blood vessels in the brain.

Choice D rationale
A CT angiogram can indeed reveal decreased blood flow related to vasospasm in the context of a subarachnoid hemorrhage. Vasospasm is a condition in which blood vessels spasm, leading to vasoconstriction. This can reduce blood flow to the brain, which can be visualized on a CT angiogram.

Choice A rationale
Swelling of the optic nerve, also known as papilledema, can be a sign of increased intracranial pressure (ICP). However, it is not a direct indicator of a worsening neurological condition.
Choice B rationale
The Glasgow Coma Scale (GCS) is a clinical tool used to assess a patient’s level of consciousness and neurological functioning. A decreasing GCS score indicates a worsening neurological condition, which could be due to increasing ICP12. Therefore, a decreasing GCS score is a direct indicator of a worsening neurological condition.
Choice C rationale
A blood pressure of 108/76 mm Hg is within the normal range and does not directly indicate a worsening neurological condition. However, drastic changes in blood pressure could potentially indicate a problem.
Choice D rationale

Changes in pupil size and shape can be a sign of increased ICP, but these changes are not specific to a worsening neurological condition. They could be due to various factors, including medication effects or damage to the cranial nerves.
Choice E rationale
A respiratory rate of 12/min is within the normal range for adults. Changes in respiratory patterns could potentially indicate a worsening neurological condition, but a rate of 12/min does not directly indicate this.