Why get tested? To help detect and evaluate kidney dysfunction
When to get tested? If your doctor thinks that you may have a problem affecting the function of your kidneys (for example, as an obstruction within the kidney or acute or chronic kidney failure) or another disease, such as congestive heart failure
Sample required? Both a urine sample (24-hour collection) and a blood sample drawn from a vein in your arm
This article was last reviewed on June 22, 2005.
This page was last modified on April 8, 2009.
The review date indicates when the article was last reviewed from beginning to end to ensure that it reflects the most current science. A review may not require any modifications to the article, so the two dates may not always agree.
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