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Why are radioactive isotopes of the stable elements that occur normally in the body useful for tracing metabolic pathways? Because

waelhammad
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2022-10-21
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Why are radioactive isotopes of the stable elements that occur normally in the body useful for tracing metabolic pathways? Because

  1. such isotopes undergo chemical reactions that are identical to those of stable isotopes.
  2. radioisotopes are indistinguishable from non-radioactive isotopes of the same element.
  3. nuclear radiation can be detected outside the body and be used to produce an image of internal structures.
  4. radioactive forms of elements that exist naturally in the body do not produce toxic effects when used as a radiopharmaceutical.
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waelhammad
2022-10-21
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A: Radioactive forms of elements that occur naturally in the body will be handled by the body in exactly the same way as the non-radioactive isotope. Hence their location within the body can be traced by the gamma radiation they emit.

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