Which statement best describes electrolyte monitoring after major surgery?

• A. Regular monitoring of potassium and magnesium with IV fluid adjustments.
• B. Monitoring only glucose.
• C. No electrolyte monitoring.
• D. Only measure blood pressure.

Answer: (A)

After major surgery, fluid shifts, ongoing losses, and medications can rapidly disturb electrolyte balance, especially potassium and magnesium. Potassium and magnesium are essential for heart rhythm and muscle function, and low levels can trigger dangerous arrhythmias, weakness, or impaired recovery. Regular monitoring of these electrolytes with adjustments to IV fluids and replacements as needed lets clinicians detect and correct deficits early, reducing complications and supporting a safer postoperative course. Monitoring glucose alone misses electrolyte problems, and checking blood pressure without assessing electrolyte levels doesn’t address the root risk.