The diagnosis of the cause of Acute renal failure (ARF) is based on

• Comprehensive review of the history of the condition

• Signs and symptoms observed

• Physical examination and

• Specific investigations.

A history of burns, diarrhea, consumption of certain medications or other similar features that result in excessive fluid loss can project the pre-renal cause while some of the symptoms such as fever can point at an infectious cause.

The doctor may perform a physical examination to confirm or rule out the underlying disorders that may have resulted in Acute renal failure.

The list of laboratory tests can include various tests such as

• Complete blood cell count 

• Estimation of levels of blood urea nitrogen and creatinine 

• Urine analysis with microscopy and estimation of urine electrolytes

These tests are useful in pointing out the cause of renal failure and also assess the severity of the condition.

Following Imaging studies may be advised in certain instances along with renal biopsy.

• Ultrasonography

• Doppler studies

• Nuclear scans

• Renal angiography

Next page: Treatment for acute renal failure

Written by: Healthplus24 team
Date last updated: June 15, 2011