🧠 NCLEX Question of the Day

A client with heart failure is receiving furosemide 40 mg IV twice daily. On day 2, the client reports muscle weakness and cramping in both legs. Which lab result should the nurse review first? A) Serum sodium B) Serum potassium C) Serum calcium D) Blood glucose Reply with your letter and a one-line rationale before you peek. The answer and rationale go up tonight at 8 PM ET.