Website Comprehensive
Questions (Frequently Tested)
with Verified Answers Graded
A+
using the ALARA concept as a guideline for radiographs does not include - Answer: using a
circular PID
If a dental assistant dosimeter badge report indicates exposure to radiation, what should be
done first? - Answer: evaluate the x ray equipment & techniques
somatic effects of radiation do not have damage effects on - Answer: offspring
the annual maximum accumulated dose (MAD) of radiation for dental assistant is based on
which of the following calculations - Answer: age-18x5 rems/year
When exposing radiographs, what is the minimum distance the operator should stand from the
tube head? - Answer: 6 feet
added filtration in the x ray tube head protects the - Answer: patient
, the most important step the dentist can take in protecting patients from x radiation is to -
Answer: properly prescribe radiographs
dental helathcare personnel can best shield themselves from radiation during patient exposure
by standing behind a - Answer: drywall barrier
which tissue is the most highly radiosensitive - Answer: the skin
during patient exposure , protection from radiation for the operator includes - Answer: standing
behind a wall
What prevents x-rays from escaping the tubehead? - Answer: leaded glass housing
to produce ionizing radiation an atom must - Answer: add an electron
what is added to create wavelengths with the greatest penetrating power - Answer: kvp
what is the purpose of a rectangular collimator - Answer: reduce radiation to the patient
what affects the number of x rays being emitted from the tube head - Answer: ma
radiation injury can be measure by - Answer: dose rate
what is the time between patient exposure to radiation and the appearance of biological
damage called - Answer: latent period
which PID reduces patient exposure by up to 70 percent when compared to a round position
indicating device - Answer: rectangular shaped