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WorksheetsChapter 7 /RADBIO questions
Total questions: 10
Worksheet time: 5mins
Which of the following is attributed to linear energy transfer?
It is the same for wave and particulate radiations used in diagnosis and treatment.
It is the same for all types of radiation.
It only occurs during x-ray procedures.
It varies for different types of radiation.
What imaging modality uses the unit of measurement known as the Bq?
Sonography
Nuclear medicine
Direct digital radiography
Computed radiography
Medical and dental x-rays are examples of:
human-produced radiation.
nonionizing radiation.
natural background radiation.
ionizing, natural background radiation.
What is the cumulative effective dose limit for a 31-year-old radiographer?
31 mSv
31 rem
31 Gy
31 rad
What is the annual effective absorbed dose equivalent limit for the general public (frequent exposure)?
0.1 mSv
0.01 mSv
1 mSv
10 mSv
As LET _____, biological damage ____
decreases;decreases
increases;decreases
decreases;increases
decreases; not effected
When low LET radiations interact with tissues, they cause damage through:
indirect action
direct action
production of free radicals
RBE
Average energy deposited per unit length of track by ionizing radiation as it passes through & interacts with a medium along its path describes;
Linear Energy Transfer
Oxygen Enhancement Ratio
Relative Biologic Effectiveness
High Linear Energy Transfer
When LET increases, the chance of a significant biologic response in the radiosensitive DNA macromolecule
decreases slightly.
also increases.
decreases considerably.
remains constant, not increasing or decreasing.
Direct action may occur after exposure to any type of radiation, but it is much more likely to occur after exposure to
low-LET radiation such as gamma rays.
low-LET radiation such as x-rays.
high-LET radiation such as alpha particles.
nonionizing radiation such as microwaves.
