I wish to know about this Gallium Scan that is done on the people as radioactive tracer. I do not much about it but wish to know about its functions and all. The matter is that I am suffering from fever since quite some time and after going to doctor he advised me to undergo this Gallium Scan to detect the real cause of fever. As I have learnt about it for the first time, can somebody let me know the conditions into which it is used and what are the preparations before going for Gallium Scan?