It depends on what is being scanned. Various chemical complexes are used that have affinity to particular tissues, be it heart, bone, kidneys, or whatever. There are also many choices in the radioactive tracer, but most commonly used today is Technetium-99m, with a half-life of 6 hours, a 143 Kev gamma, and very little or no beta or alpha, making it extremely suitable for a low impact study.
The only risk during this scanning procedure could be to a patient who is pregnant, as with any type of injectable radioactive substance. If the woman is pregnant, the radiologist must be notified; if the scan is cleared.
what is the purpose of photometric scan
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A scan right shoulder
There is a minimal risk of exposure to radiation from the gallium injection, but the exposure from one gallium scan is generally less than exposure from x rays.
radiopharmaceutical
radiopharmaceutical
may also be referred to as a thyroid scintiscan. The name of the radioactive substance used may be incorporated and the study called a technetium thyroid scan or an iodine thyroid scan.
Gallium scan
A parathyroid scan is administered when the parathyroid appears to be overactive and a tumor is suspected.
A gallium scan of the body is a nuclear medicine test that is conducted using a camera that detects gallium, a form of radionuclide, or radioactive chemical substance.
A liver scan is a diagnostic procedure to evaluate the liver for suspected disease. A radioactive substance which concentrates in the liver is injected intravenously and the image of its distribution in the body is analyzed to diagnose abnormalities.
A salivary gland scan is a nuclear medicine test that examines the uptake and secretion in the salivary glands of a radioactively labeled marker substance. The pattern of uptake and secretion shows if these glands are functioning normally.
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should you eat before having a ct scan of the chest and abdomen
the kidney nuclear medicine scan is unique in that it reveals how the kidneys are functioning. This is valuable information in helping a doctor make a diagnosis.
Most often, the patient is given the radioactive substance in the form of a tasteless liquid or capsule. It may be injected into a vein (intravenously) in some instances.