Technetium-99^m Is a Radioisotope Used in a Variety of Diagnostic

question 12

Multiple Choice

Technetium-99^m is a radioisotope used in a variety of diagnostic tests. Technetium-99^m has a short half-life (6 hr) . The advantage of a short half-life for diagnostic purposes is

• A) the radioactivity is easier to monitor.
• B) the radioactivity does not linger in the body.
• C) the radioactivity lasts for a long time.
• D) the chemical reactions induced by the technetium are more rapid.

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