Acute renal failure

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Acute renal failure

Acute renal failure is the sudden loss of kidney function. When acute renal failure occurs, the kidneys are unable to remove waste products and excess fluids, which then build up in the body and upset the body's normal chemical balance.

The most common causes of acute renal failure are dehydration, blood loss from major surgery or injury, or medications such as nonsteroidal anti-inflammatory drugs (NSAIDs), antibiotics, or the dyes (contrast agents) used in X-ray tests.

Symptoms depend on the cause of the problem and can include:

Little or no urine output.
Dizziness upon standing.
Swelling, especially of the legs and feet.
Loss of appetite, nausea, and vomiting.
Feeling confused, anxious and restless, or sleepy.
Pain on one side of the back, just below the rib cage and above the waist (flank pain).

The treatment of acute renal failure includes correcting the underlying cause and supporting the kidneys with dialysis until proper functioning is restored. Most people who develop acute renal failure are already in the hospital.

Credits

Author	Jeannette Curtis
Author	Caroline Rea, RN, BS, MS
Editor	Kathleen M. Ariss, MS
Editor	Susan Van Houten, RN, BSN, MBA
Associate Editor	Tracy Landauer
Associate Editor	Pat Truman
Primary Medical Reviewer	Patrice Burgess, MD - Family Medicine
Primary Medical Reviewer	Adam Husney, MD - Family Medicine
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Last Updated	May 25, 2007

Last updated:	May 25, 2007
Author:	Caroline Rea, RN, BS, MS
Reviewed By:	Kathleen Romito, MD - Family Medicine
Editors:	Susan Van Houten, RN, BSN, MBA, Pat Truman

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