When prescribed hydrocortisone, which cardiac effect should the nurse monitor for?

When a patient is prescribed hydrocortisone, it is important for the nurse to monitor for potential cardiac effects, particularly the risk of cardiac arrest. Hydrocortisone is a synthetic glucocorticoid that mimics the action of cortisol in the body. Like other steroids, it can lead to fluid retention, increased blood pressure, and changes in electrolyte levels—all of which can place increased strain on the cardiovascular system.

One significant concern with glucocorticoid therapy, including hydrocortisone, is its effect on heart function and rhythm. High doses or prolonged therapy can lead to electrolyte imbalances such as hypokalemia (low potassium), which can predispose patients to dangerous cardiac arrhythmias and potentially lead to cardiac arrest. Therefore, careful monitoring of cardiac function, including symptoms of arrhythmias and overall cardiovascular stability, is essential.

While pulmonary hypertension, bradycardia, and atrial fibrillation are also cardiac conditions, they are not typically associated outcomes directly linked to hydrocortisone therapy in the same way that the risk of cardiac arrest is. Therefore, the need to monitor for signs of severe complications like cardiac arrest aligns directly with the known side effects of long-term glucocorticoid administration, making it the