Kidney Scan

Renal Scan

Results

A kidney scan is a nuclear scanning test that is done to evaluate kidney function. The results of a kidney scan are usually available in 2 days.

Kidney scan

Normal:	The radioactive tracer flows evenly to and through each kidney at the same time. The kidneys are working normally.
	During a function study, the tracer should flow from the kidneys into the urine, which then drains into the ureters and bladder. This process occurs within a normal time range.
Abnormal:	The kidneys are not normal in shape, size, or location.
	The tracer does not flow evenly through the kidneys, indicating narrowing of, blockage of, or damage to the blood vessels or tissue in the kidneys. This may also indicate a condition such as a cyst or abscess.
	The tracer shows up in a concentrated area of a kidney. This might indicate a tumor containing a higher-than-normal number of blood vessels.
	During a function study, the tracer does not pass from the kidneys into the urine and then through the ureters to the bladder. This can mean the kidneys are damaged or diseased.

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Author:	Jan Nissl, RN, BS	Last Updated: November 1, 2006
Medical Review:	Patrice Burgess, MD - Family Medicine Kenneth B. Sutherland, CD, BSc, MD, FRCPC - Diagnostic Radiology
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