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Radioactive iodine uptake testing is a useful diagnostic tool for assessing thyroid pathologies. The atom is the smallest unit of an element. An atom consists of electrons, protons and neutrons. Electrons revolve around the nucleus (made of protons and neutrons) in fixed orbits. The number of electrons equals number of protons in a neutral atom.
A nuclear medicine thyroid uptake and scan is a 2-day test that studies the structure and function of the thyroid gland. Read this handout to learn how to prepare for the test, how it works, how it is done, what you may feel during the test, and how to get your results.