A nurse is preparing a poster about chronic traumatic encephalopathy (CTE) for a local community health fair. Which of the following activities should the nurse include on the poster as increasing the risk for CTE?

A. Creatine kinase (CK) test: While creatine kinase isoenzymes, including CK-MB, can be elevated following myocardial infarction (MI), they are not specific to cardiac muscle injury. CK is found in various tissues throughout the body, so elevated levels can also indicate damage to skeletal muscle or brain tissue, among other sources.

B. Creatine kinase-myocardial band (CK-MB) test: CK-MB is a cardiac-specific isoform of creatine kinase, and elevated levels can indicate myocardial injury, particularly in the context of an acute MI. However, troponin T is a more sensitive and specific marker for myocardial injury.

C. Brain natriuretic peptide (BNP) test: Brain natriuretic peptide is primarily used in the diagnosis and management of heart failure. While elevated BNP levels can indicate heart muscle strain or stress, they are not specific markers for acute myocardial infarction or early injury to the cardiac muscle.

D. Troponin T test: This is the correct answer. Troponin T is a highly specific marker for cardiac muscle injury. Elevated troponin levels can be detected within hours of myocardial infarction and persist for several days, making it an essential tool in the diagnosis of acute coronary syndromes, including myocardial infarction. Troponin T is considered one of the gold standard biomarkers for detecting early injury to the cardiac muscle.

A. Completing hourly endotracheal suctioning: Hourly endotracheal suctioning is not typically indicated for a client with increased intracranial pressure (ICP). Frequent suctioning can lead to increased intrathoracic pressure and potentially compromise venous return, which may further elevate ICP. Suctioning should be performed as needed to maintain airway patency while minimizing the risk of increasing ICP.

B. Ensuring proper ventriculostomy transducer levels: Ensuring proper ventriculostomy transducer levels is important for accurate measurement of intracranial pressure (ICP) but may not directly alleviate elevated ICP. Monitoring ICP through ventriculostomy allows for timely detection of changes in ICP, which can guide interventions to manage elevated pressure levels. However, it is not a direct intervention to reduce ICP.

C. Monitoring volume status: Monitoring volume status is important in managing a client with increased intracranial pressure (ICP) as both hypovolemia and hypervolemia can impact ICP. However, monitoring volume status alone does not directly address elevated ICP. Interventions to optimize volume status, such as fluid administration or diuresis, may be implemented based on assessment findings, but they should be done cautiously to avoid exacerbating cerebral edema or altering cerebral perfusion.

D. Elevating the head of the bed 15°: Elevating the head of the bed 15° (or higher) is a crucial intervention for managing a client with increased intracranial pressure (ICP). This position helps promote venous drainage from the brain, reducing venous congestion and intracranial pressure. Elevating the head of the bed also helps prevent cerebrospinal fluid (CSF) from pooling in the brain, which can further increase ICP. Placing the client in a semi-upright position is a standard practice in managing ICP and is recommended in various clinical guidelines.