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radt 1200 final exam questions and answers
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radt 1200 final exam questions andanswers
2nd to 10th week - Answer -the period of major organogenesis during the _____ week
of pregnancy
1 mGyt/yr - Answer -the mean marrow dose from diagnostic xray examinations
averaged over the entire population of the US is about
Higher kVp, lower mAs, increased filtration - Answer -during a radiographic examination
which of the following combinations of technical factors and filtration reduce patient
radiation dose
PA projection and lead shielding - Answer -breast dose from a scoliosis exam can be
reduced by using the
The average radiation dose to the entire active bone marrow - Answer -mean marrow
dose is defined as
CT - Answer -according to the NCRP the majority of medical imaging dose comes which
area
nomogram - Answer -patient skin exposure can be measured by using a
5 cm - Answer -a gonadal shield should be utilized if the gonads are within ___ of
primary beam
human phantoms and test objects - Answer -patient dose is usually estimated by
conducting stimulated xray examinations with
.20 mSv - Answer -the genetically significant dose for the population of the US is about
an estimate from ESE - Answer -bone marrow dose is measured by
60 mGya - Answer -a fluoroscopic procedure requires 1.5 min at 90 kVp 2 mA what is
the approx. ESE
, 3&4 only
interventional radiography
cardiac catheterization - Answer -which of the following procedures has caused the
most sentinel events
none of the above - Answer -performing routine xray exams without indication is
acceptable for
6-10 - Answer -digital radiographic tomosynthesis utilizes how many exposure during
the examination
any of the above - Answer -an estimation of patient dose is reported as
15 % - Answer -glandular dose from mammography is approx ____ of the ESD
50 mGyt - Answer -fetal dose rarely exceeds the ___ after a series of xray examinations
15 Gyt - Answer -according to the CDRH what is the exceeding dose amount in order to
cause a sentinel event
all of the choices - Answer -which of the following are risks from radiation dose to stem
cells of bone marrow
cannot be measured by a direct method, only estimated - Answer -the radiation dose
absorbed by an organ such as bone marrow
8 mGya/view - Answer -the ESE for mammography is
angiointerventional - Answer -acute skin effects from radiation exposure have been
reported following _____ exams
40 mGy/min - Answer -for the average fluoro exam the ESE is
250 mGyt - Answer -in order for the dose to be of great concern for a fetus it should be
above
thermoluminescent dosimeter - Answer -the radiation dose monitor most frequently
used to measure patient exposure is the
entrance skin dose - Answer -patient dose from diagnostic xrays is most often reported
in
effects on the gene pool - Answer -the genetically significant dose for the general public
is important because of the risk of
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