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An indium scan (white blood cells scan) is typically used to discover if you have an infection. Procedure When you arrive for your appointment, some of your blood will be withdrawn from a vein in your arm. The blood will be labeled with a small amount of radioactive material. This process may take three to four hours.
About Hepatobiliary (HIDA) Scans. A hepatobiliary (HIDA) scan is a nuclear medicine exam in which the patient receives an injection of a radioactive tracer that is taken up by bile-producing cells. The injection is followed by a scan of the gallbladder, liver, and bile ducts. Often a drug (Kinevac) will be given as part of the scan to see how strongly the gallbladder contracts. Alternatively if the gallbladder cannot be seen, then another drug (morphine) may be given to attempt to see the gallbladder. HIDA scans are most commonly used to identify the following: 1  Closed bile ducts.