What is a renal scan?
A renal scan is a diagnostic test designed to evaluate the blood supply to, and the function of, your kidneys. Prior to the injection, you will be asked to lie on you back on a bed placed above the gamma camera. A small amount of radioactive tracer will be injected into a vein, usually in the forearm. As the tracer accumulates your kidneys and is excreted into your bladder, its distribution will be followed via the continuous acquisition of images on a computer.
