Tc-99m is mostly a manmade substance. However, Tc-99m can be found in a few places throughout the environment. The few places that Tc-99m can be found is after detonation of nuclear weapon, airborne emissions from a nuclear reactor, airborne emissions from a nuclear fuel reprocessing plant, and the storage of radioactive waste in a facility, or a facility that treats radioactive waste. Since there are few places that produce Tc-99m there is a high need for the substance and is therefore manmade to keep up quantity. What is Tc-99m used for and why is it in high demand? Tc-99m is used for research purposes. It can be used for medical reasons as well. Tc-99m can evaluate what kind of condition that the heart, kidneys, lungs, liver, spleen, and bones are in. It can also evaluate blood flow throughout the body. It’s in high demand because it is used in over 80% of all nuclear scans and there’s not always enough supplies.
Tc-99m is a very useful radionuclide in gamma imaging. The reason doctors’ use Tc-99m is because when using a gamma camera the Tc-99m emits gamma rays which will show up in the scans from the gamma camera. This allows the doctors to see how blood etc. flows through the heart, kidneys, lungs, liver, and spleen. …show more content…
The lifespan of Tc-99m is 6 hours. The person is injected will remain ‘radioactive’ for the whole six hours. Anyone who is around someone that is injected with Tc-99m is also being exposed to the radiological emissions. The exposure of the radioactive can be dangerous. The six hours that the Tc-99m is in the body is not too long, the Tc-99m will not cause too much damage because of the short period of time that it is in the body. The six hours is also just enough time for the doctors to do what they need to do by running scans and use the gamma camera. Then the time it takes to recover. By the time the patient is ready to leave they are no longer