A nurse is reviewing home medications with a client scheduled for a cataract extraction procedure. Which of the following medications should the nurse question administering?

A) Computed tomography (CT) scan: A CT scan may provide detailed images of the heart and surrounding structures, but it is not typically the initial diagnostic test used to assess for cardiac tamponade. CT scans are often used in conjunction with other diagnostic tests but are not the first-line investigation for suspected tamponade.

B) Chest x-ray: While a chest x-ray may show signs of cardiac tamponade, such as an enlarged cardiac silhouette or evidence of fluid accumulation around the heart, it is not as sensitive or specific as other diagnostic tests, particularly in the acute setting. Chest x-rays may be obtained as part of the diagnostic workup, but they are not the first-line test for suspected tamponade.

C) Echocardiogram: An echocardiogram is the most appropriate initial diagnostic test for suspected cardiac tamponade. It provides real-time imaging of the heart and can detect pericardial effusion, collapse of the right atrium and ventricle during diastole (diastolic collapse), and signs of hemodynamic compromise. Echocardiography allows for rapid assessment at the bedside and can guide immediate management decisions.

D) Electrocardiogram (ECG): While an electrocardiogram may show nonspecific changes in cardiac tamponade, such as low-voltage QRS complexes or electrical alternans, it is not as sensitive or specific as an echocardiogram for diagnosing tamponade. ECG findings may support the diagnosis but are not typically the first-line test for suspected tamponade.

A. Limit exercise to 10 min, 2 days per week. This recommendation is incorrect. Regular physical activity is essential for heart health. The American Heart Association recommends at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week, spread throughout the week.

B. Monitor blood pressure This recommendation is correct. Monitoring blood pressure is an essential aspect of heart disease prevention. High blood pressure (hypertension) is a significant risk factor for heart disease, so regular monitoring allows for early detection and management.

C. Lose weight if necessary. This recommendation is correct. Maintaining a healthy weight or losing weight if overweight or obese is important for heart disease prevention. Excess weight, especially around the abdomen, increases the risk of heart disease and other health conditions.

D. Eat a diet high in saturated fats. This recommendation is incorrect. A diet high in saturated fats is associated with an increased risk of heart disease. Instead, the nurse should encourage a heart-healthy diet that includes fruits, vegetables, whole grains, lean proteins, and healthy fats.

E. Maintain current cholesterol level This recommendation is not entirely accurate. While maintaining healthy cholesterol levels is important for heart health, individuals with high cholesterol levels may need to take steps to lower their cholesterol through lifestyle modifications and, in some cases, medication. Therefore, simply maintaining current cholesterol levels may not be sufficient for heart disease prevention.