DANB-Radiation Safety-Operator Study
Guide Test.
3 rems - CORRECT ANSWER According to the OSHA Ionizing Radiation Standard, the maximum whole
body dose per calendar quarter (3 months) is
A. 18 rems.
B. 7 rems.
C. 3 rems
D. 20 rems
Dermatitis - CORRECT ANSWER Which of the following is an example of an acute health effect of
ionizing radiation exposure?
A. Leukemia
B. Skin cancer
C. Dermatitis
D. Genetic defects
discontinue use of the machine until a technician examines it. - CORRECT ANSWER If an X-ray machine is
suspected to be malfunctioning, the dental assistant should
A. continue to use the machine until a technician examines it.
B. discontinue use of the machine until a technician examines it.
C. take some test films on a coworker to troubleshoot the problem.
D. make an adjustment to the settings so the X-rays are diagnostic.
Time is directly proportional to exposure.
, (The length of time the dental assistant is exposed to radiation is directly proportional to the dose that
will be received. The longer the exposure, the higher the dose. ) - CORRECT ANSWER Which statement
is TRUE of radiation exposure?
A. Time is not related to exposure.
B. Time is inversely proportional to exposure.
C. Time is inversely proportional to the square of the exposure.
D. Time is directly proportional to exposure.
6 feet from the X-ray unit.
(To avoid scatter or leakage radiation, the operator must be at least 6 feet away from the X-ray source. )
- CORRECT ANSWER Unless the dental assistant is behind a barrier, the assistant must never stand
closer than
A. 5 feet from the X-ray unit.
B. 6 feet from the X-ray unit.
C. 4 feet from the X-ray unit.
D. 7 feet from the X-ray unit.
secondary radiation.
(When the primary beam strikes the patient, the patient's body tissues may release secondary radiation,
which is generated and emitted by the patient. ) - CORRECT ANSWER When the dental assistant is
exposing radiographs on a patient, the patient may be a source of
A. non-ionizing radiation.
B. leakage radiation.
C. secondary radiation.
D. primary radiation.
Guide Test.
3 rems - CORRECT ANSWER According to the OSHA Ionizing Radiation Standard, the maximum whole
body dose per calendar quarter (3 months) is
A. 18 rems.
B. 7 rems.
C. 3 rems
D. 20 rems
Dermatitis - CORRECT ANSWER Which of the following is an example of an acute health effect of
ionizing radiation exposure?
A. Leukemia
B. Skin cancer
C. Dermatitis
D. Genetic defects
discontinue use of the machine until a technician examines it. - CORRECT ANSWER If an X-ray machine is
suspected to be malfunctioning, the dental assistant should
A. continue to use the machine until a technician examines it.
B. discontinue use of the machine until a technician examines it.
C. take some test films on a coworker to troubleshoot the problem.
D. make an adjustment to the settings so the X-rays are diagnostic.
Time is directly proportional to exposure.
, (The length of time the dental assistant is exposed to radiation is directly proportional to the dose that
will be received. The longer the exposure, the higher the dose. ) - CORRECT ANSWER Which statement
is TRUE of radiation exposure?
A. Time is not related to exposure.
B. Time is inversely proportional to exposure.
C. Time is inversely proportional to the square of the exposure.
D. Time is directly proportional to exposure.
6 feet from the X-ray unit.
(To avoid scatter or leakage radiation, the operator must be at least 6 feet away from the X-ray source. )
- CORRECT ANSWER Unless the dental assistant is behind a barrier, the assistant must never stand
closer than
A. 5 feet from the X-ray unit.
B. 6 feet from the X-ray unit.
C. 4 feet from the X-ray unit.
D. 7 feet from the X-ray unit.
secondary radiation.
(When the primary beam strikes the patient, the patient's body tissues may release secondary radiation,
which is generated and emitted by the patient. ) - CORRECT ANSWER When the dental assistant is
exposing radiographs on a patient, the patient may be a source of
A. non-ionizing radiation.
B. leakage radiation.
C. secondary radiation.
D. primary radiation.
