Certified Wound Care Nurse (CWCN) Practice Exam

Which factor should be monitored closely in patients receiving medications known to cause peripheral edema?

1. Electrolyte balance

2. Heart rate

3. Fluid intake

4. Blood pressure

The correct answer is: Electrolyte balance

Monitoring electrolyte balance in patients receiving medications that can lead to peripheral edema is crucial because these medications often influence fluid retention and can alter the balance of electrolytes in the body. For example, certain diuretics might be prescribed to manage edema, but they can unintentionally lead to imbalances in sodium and potassium levels. An excess of retained fluid can also dilute electrolytes, leading to conditions such as hyponatremia. Understanding this connection is vital for preventing complications like muscle weakness, arrhythmias, or other cardiovascular issues that arise from low levels of vital electrolytes. This close monitoring is essential in providing safe and effective patient care in individuals experiencing peripheral edema due to medication side effects.