Hepatobiliary (HIDA) Scan
A HIDA scan evaluates gallbladder function, suspicious right upper stomach
pain, and acute cholecystitis, an obstruction of the bile duct.
What to Bring
- Your physician order (your physician may have already sent this to us)
- Personal ID
- Insurance Cards
How to Prepare
- Prior to bedtime, the night before the test, please eat a candy bar, power
bar or drink a glass of whole milk.
- You must fast 6 hours before the exam.
- Please hold narcotic medications 4 hours prior to test.
- Please inform the technologist if you are pregnant.
- If you wear an on-body device (insulin pump, insulin regulators, Neulasta,
other chemo/insulin devices, etc.), you must inform your technologist.
What to Expect
- The technologist will explain the test and answer any questions you may have.
- You will be lying on your back on an examination table or stretcher for
images to be taken.
- You will be given a small amount of radioactive tracer (the imaging agent)
in your vein. There are no side effects to the injection.
- After the injection of the imaging agent, you will have images taken for
approximately 60 minutes.
- If your doctor has ordered ejection fraction (gallbladder function) to
be calculated, the technologist will give you 8 ounces of Ensure Plus
to drink after 1 hour of imaging.
- After you drink the Ensure Plus, you will be seated in the lobby for 1
hour to allow the Ensure to take effect. After 1 hour, the final image
will be taken.
- The exam may take 1-2 hours total.
After the Exam
- You may resume your medications as prescribed.
- Your study will be reviewed by a Radiologist and the results sent to your
physician. Your physician will discuss these results with you.