The initial management of acute renal failure focuses on?

• A. Replacing kidney function with dialysis immediately
• B. Treating the underlying cause
• C. Removing the kidney surgically
• D. Ignoring underlying causes

Answer: (B)

The main idea here is that acute kidney injury is usually driven by an underlying problem affecting kidney perfusion, obstruction, or direct injury. The initial approach is to identify and treat that cause, because resolving the root issue can stop the ongoing damage and restore function. This means correcting fluid and blood pressure status to improve renal perfusion, stopping or adjusting nephrotoxic medications, treating sepsis or infection, and relieving any obstruction. Dialysis or other kidney‑supportive measures are reserved for specific complications or when the injury cannot be reversed quickly, not as the first step in all cases.