WorksheetsCh 5. Dental Radiation Protection
Total questions: 18
Worksheet time: 11mins
Every patient should be evaluated individually prior to prescribing dental images
True
False
The 8-inch PID is more effective than the 16-inch PID in reducing radiation exposure of the patient.
True
False
Pointed cones should bot be used because of increased scatter radiation.
True
False
The thyroid collar must be worn for both intraoral and extraoral exposures.
True
False
If necessary, the dental radiographer may hold a receptor in the patient's mouth to ensure a diagnostic image
True
False
Which statement describes the function of the filter in a dental x-ray tubehead?
It reduces the size and shape of the beam.
It removes low-energy x-rays.
It removed the dose of radiation to the thyroid gland.
It decreases the mean energy of the beam.
Which is not a component of inherent filtration?
oil
unleaded glass window
a leaded PID
tubehead seal
Which is the most effective method of reducing patient exposure to radiation?
lead apron
fast films
circular PID
film-holding devices
Which position-indicating device is most effective in reducing patient exposure?
conical
rectangular
circular
all of the answers are equally effective
Which device restricts the size and shape of the x-ray beam?
filter
collimator
barrier
film badge
Which material is used as a collimator?
lead
aluminum
copper
all of the answers are correct
Which describes the function of filtration?
increases scatter radiation
increases divergent rays
increases long wavelengths
reduces low-energy waves
Which is the recommended size of the beam at the patient's face?
2.75 inches
3.25 inches
3.5 inches
4.0 inches
Which term describes the dose of radiation the body can endure with little to no chance of injury?
radiation limit
maximum permissible dose
occupationally exposed dose
ALARA
Which statement is true of a radiation monitoring badge?
It should be worn when the radiographer is undergoing radiation exposure.
It can be shared between employees.
It should be worn at the waist level when x-ray receptors.
All of the answers are true
Machines operating at 70 kV or lower require (a) mm aluminum filtration.
Machines operating above 70 kV require (a) mm aluminum filtration.
State the maximum permissible dose for occupationally exposes persons. (a) mSv/year
