RHS Radiation Safety UPDATED
ACTUAL Questions and CORRECT
Answers
Dental healthcare personnel who are pregnant can expose radiographs during their - CORRECT
ANSWER - entire pregnancy
What position-indicating device shape most effectively reduces patient exposure or radiation -
CORRECT ANSWER - Rectangular
Which sequence best describes radiation injury to tissue - CORRECT ANSWER - Latent
period, period of injury, period of recovery
The penetrating x-ray beam made during dental radiography is called - CORRECT
ANSWER - Primary radiation
Which is adjusted to create wavelengths with the greatest penetrating power - CORRECT
ANSWER - Kvp
Dental xrays should be prescribed when the - CORRECT ANSWER - benefits outweigh
the risk of harm.
During patient exposure, protection from radiation for the dental assistant includes - CORRECT
ANSWER - standing behind a wall
What must be monitored for radiation leakage - CORRECT ANSWER - Dental x-ray
machines
Maximum Permissible Dose (MPD) of ionizing radiation for occupational exposure is -
CORRECT ANSWER - 5.0 rem per year(0.05 sv)
,What is used to measure excessive occupational exposure - CORRECT ANSWER -
Dosimeter
What measures the amount of radiation that reaches the surface of the skin - CORRECT
ANSWER - Roentgen
Radiation injury can be measured by - CORRECT ANSWER - dose rate
What is the advantage of using digital radiography - CORRECT ANSWER - Reduces the
radiation to the patient
Personnel monitoring for radiation exposure is done by - CORRECT ANSWER - Wearing
a dosimeter
What helps to decrease exposure of the thyroid gland from the primary radiation beam? -
CORRECT ANSWER - paralleling technique
Which organization regulates the manufacturing and installation of xray equipment - CORRECT
ANSWER - Federal government
Leakage radiation is any radiation that is - CORRECT ANSWER - From the primary beam
While exposing digital images, radiation deflecting off the patient's head is called - CORRECT
ANSWER - scatter radiation
How do you measure tissue damage from xray radiation - CORRECT ANSWER -
Radiation absorbed dose
, The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on
which of the following calculations? - CORRECT ANSWER - Age minus 18 times 5
rems/year
Personnel radiation monitoring devices are worn to - CORRECT ANSWER - record the
occupational exposure received by the operator
If there are no teeth to serve as guides which landmark indicates a maxillary molar area
radiograph - CORRECT ANSWER - tuberosity
The diameter of the cone shaped beam produced from a circular collimator is - CORRECT
ANSWER - 2.75 inches
What step should be taken immediately if the tube head drifts - CORRECT ANSWER -
Stop using the machine
The most important responsibility of the dental radiography operator is - CORRECT
ANSWER - Implementing ALARA
Which three radiation protection methods should be used to minimize radiographer exposure -
CORRECT ANSWER - Barrier, monitoring device, operator position
Contrast in a digital image primarily controlled by - CORRECT ANSWER - kVp
ALARA is primarily concerned with the radiation that is - CORRECT ANSWER -
artificial
Which cells exposed to radiation may be associated with leukemia - CORRECT
ANSWER - somatic
Who is most susceptible to radiation change - CORRECT ANSWER - Infants
ACTUAL Questions and CORRECT
Answers
Dental healthcare personnel who are pregnant can expose radiographs during their - CORRECT
ANSWER - entire pregnancy
What position-indicating device shape most effectively reduces patient exposure or radiation -
CORRECT ANSWER - Rectangular
Which sequence best describes radiation injury to tissue - CORRECT ANSWER - Latent
period, period of injury, period of recovery
The penetrating x-ray beam made during dental radiography is called - CORRECT
ANSWER - Primary radiation
Which is adjusted to create wavelengths with the greatest penetrating power - CORRECT
ANSWER - Kvp
Dental xrays should be prescribed when the - CORRECT ANSWER - benefits outweigh
the risk of harm.
During patient exposure, protection from radiation for the dental assistant includes - CORRECT
ANSWER - standing behind a wall
What must be monitored for radiation leakage - CORRECT ANSWER - Dental x-ray
machines
Maximum Permissible Dose (MPD) of ionizing radiation for occupational exposure is -
CORRECT ANSWER - 5.0 rem per year(0.05 sv)
,What is used to measure excessive occupational exposure - CORRECT ANSWER -
Dosimeter
What measures the amount of radiation that reaches the surface of the skin - CORRECT
ANSWER - Roentgen
Radiation injury can be measured by - CORRECT ANSWER - dose rate
What is the advantage of using digital radiography - CORRECT ANSWER - Reduces the
radiation to the patient
Personnel monitoring for radiation exposure is done by - CORRECT ANSWER - Wearing
a dosimeter
What helps to decrease exposure of the thyroid gland from the primary radiation beam? -
CORRECT ANSWER - paralleling technique
Which organization regulates the manufacturing and installation of xray equipment - CORRECT
ANSWER - Federal government
Leakage radiation is any radiation that is - CORRECT ANSWER - From the primary beam
While exposing digital images, radiation deflecting off the patient's head is called - CORRECT
ANSWER - scatter radiation
How do you measure tissue damage from xray radiation - CORRECT ANSWER -
Radiation absorbed dose
, The annual maximum accumulated dose (MAD) of radiation for dental assistant is based on
which of the following calculations? - CORRECT ANSWER - Age minus 18 times 5
rems/year
Personnel radiation monitoring devices are worn to - CORRECT ANSWER - record the
occupational exposure received by the operator
If there are no teeth to serve as guides which landmark indicates a maxillary molar area
radiograph - CORRECT ANSWER - tuberosity
The diameter of the cone shaped beam produced from a circular collimator is - CORRECT
ANSWER - 2.75 inches
What step should be taken immediately if the tube head drifts - CORRECT ANSWER -
Stop using the machine
The most important responsibility of the dental radiography operator is - CORRECT
ANSWER - Implementing ALARA
Which three radiation protection methods should be used to minimize radiographer exposure -
CORRECT ANSWER - Barrier, monitoring device, operator position
Contrast in a digital image primarily controlled by - CORRECT ANSWER - kVp
ALARA is primarily concerned with the radiation that is - CORRECT ANSWER -
artificial
Which cells exposed to radiation may be associated with leukemia - CORRECT
ANSWER - somatic
Who is most susceptible to radiation change - CORRECT ANSWER - Infants
