Which electrocardiographic (ECG) change by a client with chest pain is most important for the nurse to report rapidly to the health care provider?

This statement indicates effective learning because serum cardiac markers are indeed proteins that are released from necrotic (damaged) heart muscle cells when there is myocardial injury, such as in acute coronary syndrome (ACS). These markers are measured in blood tests and help in the diagnosis and assessment of ACS, particularly myocardial infarction (heart attack).

Option A is incorrect because a nitroprusside stress echocardiogram is not used for acute pericarditis. It is a diagnostic test used for evaluating coronary artery disease and ischemia.

Option B is incorrect because a pathologic Q wave is not always present in the electrocardiogram (ECG) of patients with unstable angina. It is a characteristic finding in the ECG of patients with a previous myocardial infarction (heart attack) but may not be present in unstable angina.

Option D is incorrect because coronary angiography is not the only way to confirm the diagnosis of unstable angina. Unstable angina is primarily diagnosed based on the clinical presentation, symptoms, and changes in the ECG. Coronary angiography is an invasive procedure used to visualize the coronary arteries directly and is typically reserved for cases where further assessment and intervention are needed, such as in cases of suspected coronary artery disease.

Among the given options, the most important information for the nurse to include when teaching a client newly diagnosed with hypertension is option C, "Increasing physical activity controls blood pressure (BP) for most people."

Option C emphasizes the importance of increasing physical activity as a primary lifestyle modification to control blood pressure for most people with hypertension. Regular physical activity can help improve cardiovascular health, reduce blood pressure, and manage overall health. It is a proactive step that the individual can take immediately to start managing their hypertension.

Incorrect:

Option A, "Most people are able to control BP through dietary changes," is not necessarily true for everyone. While dietary changes, such as reducing sodium intake and adopting a heart-healthy diet, can be beneficial in managing hypertension, they may not be sufficient for everyone. Physical activity is an essential component of hypertension management and has broader health benefits.

Option B, "Annual BP checks are needed to monitor treatment effectiveness," is important information, but it is more of a recommendation for ongoing hypertension management rather than the most critical information for someone newly diagnosed with hypertension. Regular blood pressure monitoring is indeed crucial for treatment assessment and ensuring that the chosen treatment plan is effective.

Option D, "Hypertension is usually asymptomatic until target organ damage occurs," is important information to understand the nature of hypertension, but it does not provide immediate guidance for the newly diagnosed individual on how to manage their condition effectively.

As part of a comprehensive hypertension education plan, the nurse can provide additional information about dietary changes, regular blood pressure monitoring, and the importance of early management to prevent target organ damage. However, emphasizing physical activity as a fundamental aspect of hypertension management is the most important initial step for a newly diagnosed client. The nurse can then tailor the education based on the individual's specific needs and health status.