Answers Physical Science Radioactivity — QuizQuestion 10

10

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Radioactivity — Quiz

Question 10 • Physical Science

How can doctors best detect medical problems?

Answer

A

by injecting a radioactive isotope that travels to the target tissue and measures the amount of radioactive decay

B

by using a radioactive isotope to kill unwanted cells and target diseased tissue

C

by measuring the half-life of an isotope found in the skin with high-energy gamma radiation from outside the body

D

by administering a drug that targets replicating cells

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