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Chemistry / General, Organic, and Biological Chemistry: Structures of Life 4 / Chapter 4 / Problem 36QP

General, Organic, and Biological Chemistry: Structures of Life | 4th Edition | ISBN: 9780321750891 | Authors: Karen C. Timberlake

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a.Technetium-99m emits only gamma radiation. Why would

Chapter 4, Problem 36QP

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QUESTION:

a.Technetium-99m emits only gamma radiation. Why would this type of radiation be used in diagnostic imaging rather than an isotope that also emits beta or alpha radiation?b. A person with polycythemia vera (excess production of red blood cells) receives radioactive phosphorus-32. Why would this treatment reduce the production of red blood cells in the bone marrow of the patient?

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QUESTION:

a.Technetium-99m emits only gamma radiation. Why would this type of radiation be used in diagnostic imaging rather than an isotope that also emits beta or alpha radiation?b. A person with polycythemia vera (excess production of red blood cells) receives radioactive phosphorus-32. Why would this treatment reduce the production of red blood cells in the bone marrow of the patient?

ANSWER:

Solution 36 QPStep-1a. Here we have to describe why technetium-99 which emit gamma radiation be used in diagnostic imaging rather than that also emits beta or alpha radiation.* Technetium-99m is a radioisotope used in nuclear medicine for several diagnostic procedure such as detection of brain tumour and examination of liver and spleen. The source of technetium-99 is molybdenum-99 which is produced in nuclear reactor by neutron bombardment of molybdenum-98.01n + 4298 Mo 42 99Mo 42 99Mo 43 99Tc + -10e* The

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