10
QuizMultiple Choice

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