This discomfort disappears when the test is completed. You may also feel uncomfortable for a short while if small, enclosed space causes you discomfort. Equipment used I.V. set-up for radioactive substance. Rectilinear scanner or gamma camera. Description of test You or a close relative will be required to sign a consent form after the procedure has been explained to you.
Skin is cleaned with antiseptic.
I.V. is started in a vein, usually in the arm. Radioactive chemical is injected into the I.V. Follow technician's instructions regarding positions while you are under the scanner. The scintillation camera or scanner detects rays emitted from the radioactive chemical injected into your body. Rays are converted into images displayed on a video screen for interpretation or photographing for later interpretation. The scanner makes soft clicking noises as it moves across your abdomen.