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Special Applications of Nuclear and Wave Phenomena — Quiz Answers

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How can mechanical waves help in the treatment of cancer?

A
Cells absorb chemotherapy drugs more easily after being treated with ultrasound.
B
The radioisotope in a radiopharmaceutical releases sound waves into surrounding cells.
C
Beams of X-rays are targeted at a cancerous tumor from outside the body.
D
Ultrasound is used to improve absorption of a radioactive pellet by a tumor.
3

Which therapy is associated with light waves, but not sound waves?

A
ablating tumors
B
cauterizing an incision or wound
C
breaking down kidney stones
D
acoustically targeting the delivery of a drug
4

Sally is concerned about the X-ray images her dentist plans to take of her teeth. She has read that X-rays can cause tissue effects, such as skin reddening and hair loss. Which statement would best inform Sally of the level of risk?

A
The dentist uses X-ray fluoroscopy, which takes too short a time to cause those problems.
B
The dentist uses X-ray radiography, which can take enough time to cause those problems.
C
The dentist uses X-ray radiography, which takes too short a time to cause those problems.
D
The dentist uses X-ray fluoroscopy, which can take enough time to cause those problems.
5

Which type of waves can be used to clear a blockage from small tubes in the kidneys?

A
visible light and X-rays
B
sound waves and visible light
C
X-rays and radio waves
D
radio waves and sound waves
6

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

A
brachytherapy
B
radionuclide therapy
C
external beam radiation therapy
D
acoustic targeted drug delivery
7

Which imaging techniques capture real-time images?

A
sonography and fluoroscopy
B
radiography and fluoroscopy
C
sonography and CT
D
MRI and CT
8

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?

A
brachytherapy, radiopharmaceuticals, deep external beam radiation therapy
B
deep external beam radiation therapy, brachytherapy, radiopharmaceuticals
C
radiopharmaceuticals, brachytherapy, deep external beam radiation therapy
D
radiopharmaceuticals, deep external beam radiation therapy, brachytherapy
9

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

A
The radiopharmaceutical must be able to block X-rays to create the image.
B
The radiopharmaceutical must pass through the body without being absorbed.
C
The radiopharmaceutical must localize to the specific organ or tissue to be imaged.
D
The radiopharmaceutical must absorb and re-emit a specific radiation within a magnetic field.
10

How do radiography and fluoroscopy compare?

A
Neither technique increases the risk of developing cancer.
B
Radiography uses ionizing radiation, but fluoroscopy does not.
C
Radiography can monitor a process, but fluoroscopy forms a single image.
D
Each technique uses electromagnetic waves.

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