Renal Scan
Alternate Names : Kidney Scan, Renogram
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Special Considerations
Findings of reduced function may be nonspecific in identifying the cause of the dysfunction. Congenital (or other) abnormalities of kidney shape or size may contribute to an error in interpreting results of a renal scan, because glomerular filtration rate and other functions are calculated based on the presumption of normal anatomic size and shape. Tests of some functions may require delayed images (1 to 4 hours later).
Advantages include the ability to determine kidney function without exposure to contrast agents and the ability to obtain quantitative information that may not be obtainable by other procedures.
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