A nurse is teaching a group of student nurses about populations at higher risk for multiple sclerosis. Which of the following demographics should be included in the teaching?
(Select All that Apply.)

Choice A Reason:

Prothrombin time (PT) is a laboratory test that measures the time it takes for blood to clot is incorrect. While PT may be part of a comprehensive evaluation in some cases, it is not typically the initial diagnostic test performed for a TIA. A TIA is caused by a temporary disruption of blood flow to the brain, often due to an embolus or transient blockage in a cerebral artery, rather than a primary disorder of blood clotting.

Choice B Reason:

Complete blood count (CBC) is incorrect. A complete blood count (CBC) is a common laboratory test that evaluates the cellular components of the blood, including red blood cells, white blood cells, and platelets. While CBC can provide valuable information about hematological conditions such as anemia or thrombocytosis, it is not specific to diagnosing the cause of a TIA. TIA is primarily a vascular event related to transient ischemia in the brain rather than a disorder of blood cell counts.

Choice C Reason:

Computerized tomography angiography (CTA) is appropriate. CTA is a non-invasive imaging test that combines computed tomography (CT) scanning with contrast dye to visualize blood vessels throughout the body, including those in the brain. CTA can help identify any blockages, narrowing, or abnormalities in the blood vessels supplying the brain, which may be contributing to the TIA. It provides detailed images of the blood vessels' structure and can help guide further management and treatment decisions.

Choice D Reason:

Transesophageal echocardiogram (TEE) is inappropriate. Transesophageal echocardiogram (TEE) is an imaging test that provides detailed images of the heart and major blood vessels using sound waves. While TEE may be indicated in some cases of TIA to evaluate for potential cardiac sources of emboli (blood clots), such as atrial fibrillation or cardiac valve abnormalities, it is not typically the first-line diagnostic test performed in the emergency department setting for evaluating a TIA. Initial imaging studies such as CTA or magnetic resonance imaging (MRI) of the brain are usually prioritized to assess for acute changes in cerebral blood flow and potential causes of the TIA.

Choice A Reason:

Keeping lights turned to medium level in the evening is incorrect. This intervention is aimed at reducing environmental stimuli, which may be appropriate for some patients with neurological conditions to minimize sensory overload and promote rest. However, it is not a specific intervention for preventing cerebral aneurysm rupture.

Choice B Reason:

Maintaining the head of the bed between 30 and 45° is correct. Keeping the head of the bed elevated can help reduce intracranial pressure and decrease the risk of cerebral aneurysm rupture or rebleeding in patients with aneurysmal subarachnoid hemorrhage. This position promotes venous drainage from the brain and helps prevent increases in intracranial pressure.

Choice C Reason:

Administering hypotonic intravenous solutions is incorrect. Hypotonic intravenous solutions have a lower osmolarity than blood plasma and can lead to cerebral edema, which may exacerbate intracranial pressure and increase the risk of cerebral aneurysm rupture. Isotonic solutions, such as normal saline (0.9% NaCl) or lactated Ringer's solution, are typically preferred for fluid resuscitation and maintenance in patients at risk of cerebral aneurysm rupture.

Choice D Reason:

Reposition the client every shift is incorrect. Repositioning the client every shift helps prevent complications associated with immobility, such as pressure ulcers, pneumonia, and venous thromboembolism. While important for overall patient care, repositioning alone does not directly address the risk of cerebral aneurysm rupture.