RADT 1200 CH 1-4 Exam Questions and Answers All Correct
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RADT 1200
RADT 1200 CH 1-4 Exam Questions and Answers All Correct
Which member of the medical team is charged by hospital administration to be directly responsible for the execution, enforcement, and maintenance of the ALARA program? - Answer-The radiation safety officer (RSO)
What do the letters BERT s...
RADT 1200 CH 1-4 Exam Questions
and Answers All Correct
Which member of the medical team is charged by hospital administration to be directly
responsible for the execution, enforcement, and maintenance of the ALARA program? -
Answer-The radiation safety officer (RSO)
What do the letters BERT stand for? - Answer-Background Equivalent Radiation Time
The BERT method compares the amount of radiation recieved during an exam with -
Answer-The amount of radiation received when patient is on their own time
BERT is based on annual U.S. population exposure of approximately -- millisieverts per
year - Answer-3
Using the BERT method has the following advantages: - Answer-- Does not imply
radiation risk; simply a means for comparison
-emphasizes that radiation is an innate part of our environment
-Provide an answer that is easy for the patient to comprehend
-- refers to kinetic energy that passes from one location to another and can have many
manifestations - Answer-Radiation
When discussing energies found on the EM spectrum, higher frequencies are
associated with -- wavelengths and -- energies - Answer-Shorter; Higher
Of the energies found on the EM spectrum, which 3 are classified as ionizing
radiations? - Answer-1. X-Rays
2. Gamma Rays
3. UV with energy greater than 10 eV
In addition to electromagnetic radiation, there is another category of ionizing radiation
called - Answer-Particulate radiation
Particulate radiation includes which forms? - Answer-1. Alpha particles
2. beta particles
3. neutrons
4. protons
-- are emitted from nuclei of very heavy elements such as uranium and plutonium during
the process of radioactive decay - Answer-Alpha particles (alpha rays)
, Which type of particulate radiation is essentially a helium nucleus? - Answer-alpha
particles
-- are a type of particulate radiation that has a large mass and a positive charge. -
Answer-Alpha particles
-- are a type of particulate radiation that is identical to high-speed electrons except for
their origin - Answer-Beta Particles
Alpha and beta particles originate from where? - Answer-within the nuclei of radioactive
atoms
-- are a type of particulate radiation that has a negative charge - Answer-Beta particles
Comparing alpha and beta particles, which one is more penetrating? - Answer-Beta
particles
If two atoms have the same number of protons but different numbers of neutrons in their
nuclei, they are referred to as - Answer-isotopes
-- is a radiation quantity used for radiation protection purposes when a person receives
exposure from various types of ionizing radiation - Answer-Radiation dose
-- is a radiation dose/unit that takes into account the dose for all types of ionizing
radiation to various irradiated organs or tissues of the body - Answer-Effective dose
(EfD)
What is the SI unit for EqD? - Answer-mSv (millisievert) or Sv (sievert)
Which technical factor controls the quality or penetrating power of photons in the x-ray?
- Answer-kVp
Which technical factor controls the quantity of the photons in the x-ray beam? - Answer-
mAs
Concerning x-ray interactions with matter, the amount of energy absorbed per unit mass
is referred to as the - Answer-Absorbed dose
A diagnostic x-ray beam is produced when a stream of high speed - bombards a -
charged target in a highly evacuated glass tube. - Answer-Electrons; Positively
Name the 5 interactions between x-rays and matter - Answer-1. Coherent Scattering
2. Photoelectric absorption
3. Compton scattering
4. Pair production
5. Photodesenegration
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