Which statement best describes the indications for dialysis in renal failure?

Which statement best describes the indications for dialysis in renal failure?

• A. BUN > 100 or Cr > 10
• B. All of the above
• C. Other treatments have failed
• D. Major cardiac or electrolyte instability

Answer: (B)

Dialysis is indicated based on the overall clinical picture, not a single lab number. The decision hinges on life-threatening or refractory problems that dialysis can correct or prevent. A high BUN or creatinine by itself isn’t an absolute trigger—some patients with very high values are asymptomatic or have controllable labs, while others may need dialysis for complications even at lower values. A major cardiac or electrolyte instability, such as hyperkalemia with ECG changes or severe acidosis, is a clear urgent reason to initiate dialysis. Likewise, if other treatments have failed to control volume overload, electrolyte disturbances, or acid–base problems, dialysis becomes appropriate. Taken together, these scenarios show that multiple factors—labs, symptoms, and response to treatment—can justify dialysis, so choosing all of the above reflects the real-world, multifactorial indications.

Dialysis is indicated based on the overall clinical picture, not a single lab number. The decision hinges on life-threatening or refractory problems that dialysis can correct or prevent. A high BUN or creatinine by itself isn’t an absolute trigger—some patients with very high values are asymptomatic or have controllable labs, while others may need dialysis for complications even at lower values. A major cardiac or electrolyte instability, such as hyperkalemia with ECG changes or severe acidosis, is a clear urgent reason to initiate dialysis. Likewise, if other treatments have failed to control volume overload, electrolyte disturbances, or acid–base problems, dialysis becomes appropriate. Taken together, these scenarios show that multiple factors—labs, symptoms, and response to treatment—can justify dialysis, so choosing all of the above reflects the real-world, multifactorial indications.