 | | | | Medical Health Encyclopedia | |
Liver scan
Definition:
A liver scan uses a radioactive isotope to help determine how well the liver and/or spleen is functioning. Alternative Names:
Technetium scan; Liver technetium sulfur colloid scan; Liver-spleen radionuclide scan; Nuclear scan - technetium; Nuclear scan - liver or spleen
Text Continues Below
How the test is performed:
A radioisotope is injected into a vein. After the liver has had sufficient time to absorb the radioisotope, you will be asked to lie on a table where you will be positioned under the scanner. The scanner is able to detect where the radioisotope material is located, and images are displayed on a computer. The technician operating the camera and computer can manipulate the equipment to get a clearer picture. You may be asked to remain still, hold your breath for short periods, or to change positions during the scan. How to prepare for the test:
- You must sign an informed consent form.
- Remove jewelry, dentures, and other metals because they can interfere with the scanner's functions.
- You may need to wear a hospital gown.
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: How the test will feel:
When the radioisotope is injected, there will be a sharp prick or stinging from the needle. After the injection, there is no pain. The major discomfort is from the need to lie still during the scan; but if you are very tense, you may be given a mild sedative.
| 
.gif)
