____4.Diagnosis of heart failure cannot be made by symptoms alone because many disorders share the same symptoms. The most specific and sensitive diagnostic test for heart failure is: 1.Chest x-rays that show cephalization and measure heart size2.Two-dimensional echocardiograms that identify structural anomalies and cardiac dysfunction3.Complete blood count, blood urea nitrogen, and serum electrolytes that facilitate staging for end-organ damage4.Measurement of brain natriuretic peptide to distinguish between systolic and diastolic dysfunction ____5.Treatments for heart failure, including drug therapy, are based on the stages developed by the ACC/AHA. Stage A patients are treated with:
____6.Class I recommendations for stage A heart failure include: ____7.Stage B patients should have beta blockers added to their heart failure treatment regimen when: ____8.Increased life expectancy for patients with heart failure has been associated with the use of: 1.ACE inhibitors, especially when started early in the disease process2.All beta blockers regardless of selectivity3.Thiazide and loop diuretics4.Cardiac glycosides ____9.Stage C patients usually require a combination of three to four drugs to manage their heart failure. Inaddition to ACE inhibitors and beta blockers, diuretics may be added. Which of the following statements about diuretics is NOT true?
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