A client with a history of chronic heart failure reports increasing shortness of breath, orthopnea, and has gained 4 pounds over the past 3 days. What is the priority nursing intervention?

✓ Correct Answer: Option B

The client's symptoms indicate acute decompensated heart failure with fluid overload. Elevating the head of the bed improves breathing, and a loop diuretic helps excrete excess fluid, reducing pulmonary congestion, which is the priority.