123 Quiz Question

Question 1

Why is a question concerning the amount of radiation a patient will receive during a spectic x-ray
procedure ditticult to answer?
1. Because the received dose is specified in a number of different units of measure.
2. Because the scientific units for radiation dose are normally not comprehensible by a patient.
3. Because the patient should not receive any information about radiation dose.

Answer 1

1 and 2

Question 2

Electromagnetic radiation travels or propagates through space in the form of a wave but can interact with matter as a particle of energy called a photon. his dual nature is referred to as

Answer 2

wave-particle duality.

Question 3

Compton scattering is synonymous witn

Answer 3

incoherent scattering.

Question 4

Which of the following results in all-directional scatter?

Answer 4

Compton interaction

Question 5

The cardinal principles of radiation protection include which of the following?

Answer 5

All the options

Question 6

Cosmic radiation occurs in which two forms?

Answer 6

Solar and galactic

Question 7

Which of the following is a method of explaining radiation to the public?

Answer 7

BERT

Question 8

Which of the following is not a type of interaction between x-radiation and biologic matter?

Answer 8

Bremsstrahlung

Question 9

X-rays are carriers of

Answer 9

human-made electromagnetic energy.

Question 10

Terrestrial radiation includes which of the following sources?

Answer 10

Long-lived radioactive elements such as uranium-238, radium-226, and
thorium-232 that are present in variable quantities in the crust of the Earth

Question 11

If a patient asks a radiographer a question about how much radiation he or she will receive from a specific -ray procedure, the radiographer can

Answer 11

respond by using an estimation based on the comparison of radiation received
from the x-ray to natural background radiation received.

Question 12

Which of the following helps shield the global population from exposure to essentially all high-energy, bombarding cosmic rays?

Answer 12

Atmosphere and magnetic field of the Earth

Question 13

What is the effective atomic number of compact bone?

Answer 13

13.8

Question 14

X-rays are a form of which of the following kinds of radiation?

Answer 14

Ionizing

Question 15

What unit is used to measure radiation exposure in the metric International System of Units?

Answer 15

Coulomb per kilogram

Question 16

Particles associated with electromagnetic radiation that have neither mass nor electric charge and
travel at the speed of light are

Answer 16

X-ray photons.

Question 17

The symbol Z indicates

Answer 17

atomic number of an atom.

Question 18

The millisievert (mSv) is equal to

Answer 18

1/1000 of a sievert.

Question 19

The first decay product of radium is

Answer 19

radon.

Question 20

What is the total average annual radiation equivalent dose for estimated levels of radiation exposure
for humans?

Answer 20

5.5

Question 21

In the electromagnetic spectrum, higher frequencies are associated with

Answer 21

shorter waveleneths and higher energies

Question 22

Which of the following provides the basis for determining whether an imaging procedure or practice
is justified?

Answer 22

Diagnostic efficacy

Question 23

Of the two sources of ionizing radiation listed below, which source remains fairly constant from vear
to year?

Answer 23

Natural