Radioisotopes used in diagnostic medical procedures are usually

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Gamma emitters are most commonly used in diagnostic medical procedures because they can easily penetrate the body's tissues and organs, allowing for imaging and diagnosis of various conditions. Alpha and beta emitters are less commonly used since they have a shorter range and are more harmful to the body. Using radionuclides with long half-lives would also not be ideal since they would remain in the body for longer periods of time, increasing the risk of radiation exposure.

Radioisotopes Used in Diagnostic Medical Procedures Are Usually