This test is used to assess gallbladder function which can be abnormal in acute or chronic cholecystitis. You will be injected with a radiotracer that is excreted by your liver into the gallbaldader. The gamma camera will monitor progress. An oral meal of Ensure may also be given to promote emptying of the gallbladder. The procedure usually takes 2 hours.
You need to fast for 4 hours prior to the test.