What should the nurse monitor for in a client experiencing an adverse reaction to furosemide?

In a client experiencing an adverse reaction to furosemide, monitoring for symptoms of dehydration is crucial. Furosemide is a loop diuretic that promotes the excretion of sodium and water through urine, which can lead to a significant loss of fluids and electrolytes. Signs of dehydration may include dry mucous membranes, decreased urine output, dizziness, and hypotension. When furosemide causes excessive diuresis, it can lead to a reduction in body fluid volume, potentially resulting in dehydration if not monitored carefully.

While other options involve potential effects of furosemide use, they do not specifically indicate the immediate adverse reactions associated with excessive fluid loss or need for monitoring in this scenario. For example, increased potassium levels may occur due to the effects of the diuretic on electrolyte balance, but furosemide typically causes hypokalemia rather than hyperkalemia. Increased blood pressure would not typically result from an adverse reaction to furosemide; instead, one would expect lower blood pressure due to diuresis. Cardiac arrest is a severe, potentially life-threatening condition that can occur in extreme cases of electrolyte imbalance but is less directly connected to the initial adverse reactions of furosemide. Thus, monitoring for