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Oral cholecystogram
Definition:
Oral cholecystogram is an X-ray imaging procedure used to examine the gallbladder, a sac-like organ in the right upper abdomen that stores bile before it is released through the bile ducts into the small intestines to help digest fat. Alternative Names:
X-ray - gallbladder; Gallbladder series; OCG; Gallbladder X-ray Text Continues Below
How the test is performed:
The test is performed in a hospital radiology department or in the health care provider's office by an X-ray technician. The night before the test, you swallow 6 tablets (one at a time) that contains the contrast medium. At the hospital, you will lie on the X-ray table and will be asked to assume various positions. The health care provider may examine the gallbladder with a fluoroscope (a type of X-ray that projects the image onto a TV-like monitor). Then you may be asked to drink a high-fat formula that will cause the gallbladder to contract and release some bile. X-ray images will then be taken at timed intervals. How to prepare for the test:
The health care provider must be notified if you are pregnant or allergic to X-ray contrast material. The day before the test you will be asked to eat a high-fat meal (eggs, butter, milk, salad oils, or fatty meats) at noon. That evening, eat a low-fat meal (fruits, vegetables, bread, tea or coffee, and only lean meat). Two hours after the low-fat meal, take 6 tablets, one at a time, which contain the contrast medium. After taking the tablets, consume no fluids until after the test. For infants and children:
The preparation you can provide for this test depends on your child's age and experience. For specific information regarding how you can prepare your child, see the following:
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