Pretest

Question 1

Why is the choice of a radiopharmaceutical important in radioisotope imaging?

Revolt · Accepted Answer

The radiopharmaceutical must localize to the specific organ or tissue to be imaged.

Question 2

Which imaging technique uses X-rays to make cross-sectional images of the body?

Revolt · Accepted Answer

CT scan

Question 3

Which imaging technique uses sound waves rather than electromagnetic waves?

Revolt · Accepted Answer

sonography

Question 4

Which therapeutic application involves the placement of a pellet of radioactive material near a tumor?

Revolt · Accepted Answer

brachytherapy

Question 5

How do radiography and sonography compare?

Revolt · Accepted Answer

Radiography uses ionizing radiation, but sonography does not.

Question 6

Any radiation treatment has the potential to damage DNA in healthy cells. Which lists therapeutic uses of radiation based on the likelihood of affecting healthy cells in order from least likely to most likely?

Revolt · Accepted Answer

brachytherapy, radiopharmaceuticals, deep external beam radiation therapy

Question 7

Which lists imaging techniques that use wave behaviors in order of resolution from the best resolution to the worst?

Revolt · Accepted Answer

X-ray imaging, CT scan, MRI

Question 8

Which lists imaging techniques that use wave behaviors in order of increased risk of cancer from least risk to greatest?

Revolt · Accepted Answer

sonography, X-ray radiography, CT scan

Pretest Answers

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