What electrolyte imbalance should a nurse monitor for in a client with suspected Cushing syndrome?

In the context of Cushing syndrome, the correct choice involves monitoring for hypokalemia, which is a common electrolyte imbalance associated with this condition. Cushing syndrome is characterized by an excess of cortisol, which can lead to sodium retention and increased water retention, causing hypernatremia. Concurrently, the elevated levels of cortisol can cause increased excretion of potassium in the urine, leading to decreased potassium levels in the blood, resulting in hypokalemia.

Hypokalemia can manifest as muscle weakness, fatigue, and arrhythmias, making it important for healthcare providers to closely monitor potassium levels in patients with Cushing syndrome. Regular assessment of electrolytes allows for timely intervention and management of potential complications related to the condition.

Other choices, while they may seem relevant, are not directly associated with Cushing syndrome in the same manner. For instance, hypovolemia is typically linked to conditions that cause a significant loss of blood volume, rather than the fluid retention experienced in Cushing syndrome. Hypocalcemia could occur in various situations but is not a hallmark of Cushing syndrome. Lastly, hyponatremia is usually not associated with Cushing syndrome as the condition typically leads to hypernatremia due to sodium retention.