radt 1200 final
Study online at https://quizlet.com/_i0ry2b
1. 2nd to 10th week: the period of major organogenesis during the _____ week of pregnancy
2. 1 mGyt/yr: the mean marrow dose from diagnostic xray examinations averaged over the entire population of
the US is about
3. Higher kVp, lower mAs, increased filtration: during a radiographic examination which of the
following combinations of technical factors and filtration reduce patient radiation dose
4. PA projection and lead shielding: breast dose from a scoliosis exam can be reduced by using the
5. The average radiation dose to the entire active bone marrow: mean marrow dose is
defined as
6. CT: according to the NCRP the majority of medical imaging dose comes which area
7. nomogram: patient skin exposure can be measured by using a
8. 5 cm: a gonadal shield should be utilized if the gonads are within ___ of primary beam
9. human phantoms and test objects: patient dose is usually estimated by conducting stimulated xray
examinations with
10. .20 mSv: the genetically significant dose for the population of the US is about
11. an estimate from ESE: bone marrow dose is measured by
12. 60 mGya: a fluoroscopic procedure requires 1.5 min at 90 kVp 2 mA what is the approx. ESE
13. 3&4 only
interventional radiography
cardiac catheterization: which of the following procedures has caused the most sentinel events
14. none of the above: performing routine xray exams without indication is acceptable for
15. 6-10: digital radiographic tomosynthesis utilizes how many exposure during the examination
16. any of the above: an estimation of patient dose is reported as
17. 15 %: glandular dose from mammography is approx ____ of the ESD
18. 50 mGyt: fetal dose rarely exceeds the ___ after a series of xray examinations
19. 15 Gyt: according to the CDRH what is the exceeding dose amount in order to cause a sentinel event
20. all of the choices: which of the following are risks from radiation dose to stem cells of bone marrow
21. cannot be measured by a direct method, only estimated: the radiation dose absorbed
by an organ such as bone marrow
22. 8 mGya/view: the ESE for mammography is
23. angiointerventional: acute skin effects from radiation exposure have been reported following _____
exams
24. 40 mGy/min: for the average fluoro exam the ESE is
1/8
, radt 1200 final
Study online at https://quizlet.com/_i0ry2b
25. 250 mGyt: in order for the dose to be of great concern for a fetus it should be above
26. thermoluminescent dosimeter: the radiation dose monitor most frequently used to measure pa-
tient exposure is the
27. entrance skin dose: patient dose from diagnostic xrays is most often reported in
28. effects on the gene pool: the genetically significant dose for the general public is important because
of the risk of
29. 1: the approximate average bone marrow dose to the population of the US is _____ mGy/yr
30. radon: according the NCRP natural radiation dose is approximately 3 mSv. which of the following would have
2.0 mSv
31. 88 mGya: a fluoroscopic procedure requires 2.2 min at 80 kvp, 2 mA. what is the ESE
32. entrance skin dose: the simplest way to measure patient dose is to measure the
33. higher: in order to lower the dose for a CT exam, the scanner should have a _____ multislice value
34. radiology personnel and patients: a controlled area is one occupied primarily by
35. 0.50 mGyt/hr: if a technologist is receiving 2 mGyt/hr standing 1 foot from the patient during fluoroscopy
what is his rate of exposure when he steps back to a distance of 2 feet from the patient
36. 1: the leakage radiation limit for xray tubes is less than ______ mGy/hr at 1 meter from the tube housing
37. 157.5: a radiation worker is exposed to 3.5 maya/hr. if exposed for 45 minutes what is the dose
38. LeakageScatter: a secondary barrier is designed to absorb _____ radiation
39. Dosimeters: devices designed to measure total accumulated radiation intensity are called
40. Follow the concept of ALARA: what is the best approach to occupational radiation exposure
41. 0.25: the Bucky slot opening in the side of the table must be automatically covered with ____ mm Pb during
fluoroscopy
42. All of the above: health physics is concerned with minimizing radiation dose to
radiation physicists
radiation workers
the public
43. linearity: measuring the relationship between output intensities of adjacent mA stations is a test of
44. 5: the output intensities of reproduced exposures should not vary more than _____ % from each other
45. : an occupational radiation monitor records a dose 3mSv. What is the effective dose if the occupational dose is
received during fluoroscopy when a protective apron is worn? assume a tissue weighing factor for the thyroid is .05
46. .1%: the intensity of scatter radiation 1 meter from the patient is approx. ____ of the intensity of the incident beam
at the patient
2/8
Study online at https://quizlet.com/_i0ry2b
1. 2nd to 10th week: the period of major organogenesis during the _____ week of pregnancy
2. 1 mGyt/yr: the mean marrow dose from diagnostic xray examinations averaged over the entire population of
the US is about
3. Higher kVp, lower mAs, increased filtration: during a radiographic examination which of the
following combinations of technical factors and filtration reduce patient radiation dose
4. PA projection and lead shielding: breast dose from a scoliosis exam can be reduced by using the
5. The average radiation dose to the entire active bone marrow: mean marrow dose is
defined as
6. CT: according to the NCRP the majority of medical imaging dose comes which area
7. nomogram: patient skin exposure can be measured by using a
8. 5 cm: a gonadal shield should be utilized if the gonads are within ___ of primary beam
9. human phantoms and test objects: patient dose is usually estimated by conducting stimulated xray
examinations with
10. .20 mSv: the genetically significant dose for the population of the US is about
11. an estimate from ESE: bone marrow dose is measured by
12. 60 mGya: a fluoroscopic procedure requires 1.5 min at 90 kVp 2 mA what is the approx. ESE
13. 3&4 only
interventional radiography
cardiac catheterization: which of the following procedures has caused the most sentinel events
14. none of the above: performing routine xray exams without indication is acceptable for
15. 6-10: digital radiographic tomosynthesis utilizes how many exposure during the examination
16. any of the above: an estimation of patient dose is reported as
17. 15 %: glandular dose from mammography is approx ____ of the ESD
18. 50 mGyt: fetal dose rarely exceeds the ___ after a series of xray examinations
19. 15 Gyt: according to the CDRH what is the exceeding dose amount in order to cause a sentinel event
20. all of the choices: which of the following are risks from radiation dose to stem cells of bone marrow
21. cannot be measured by a direct method, only estimated: the radiation dose absorbed
by an organ such as bone marrow
22. 8 mGya/view: the ESE for mammography is
23. angiointerventional: acute skin effects from radiation exposure have been reported following _____
exams
24. 40 mGy/min: for the average fluoro exam the ESE is
1/8
, radt 1200 final
Study online at https://quizlet.com/_i0ry2b
25. 250 mGyt: in order for the dose to be of great concern for a fetus it should be above
26. thermoluminescent dosimeter: the radiation dose monitor most frequently used to measure pa-
tient exposure is the
27. entrance skin dose: patient dose from diagnostic xrays is most often reported in
28. effects on the gene pool: the genetically significant dose for the general public is important because
of the risk of
29. 1: the approximate average bone marrow dose to the population of the US is _____ mGy/yr
30. radon: according the NCRP natural radiation dose is approximately 3 mSv. which of the following would have
2.0 mSv
31. 88 mGya: a fluoroscopic procedure requires 2.2 min at 80 kvp, 2 mA. what is the ESE
32. entrance skin dose: the simplest way to measure patient dose is to measure the
33. higher: in order to lower the dose for a CT exam, the scanner should have a _____ multislice value
34. radiology personnel and patients: a controlled area is one occupied primarily by
35. 0.50 mGyt/hr: if a technologist is receiving 2 mGyt/hr standing 1 foot from the patient during fluoroscopy
what is his rate of exposure when he steps back to a distance of 2 feet from the patient
36. 1: the leakage radiation limit for xray tubes is less than ______ mGy/hr at 1 meter from the tube housing
37. 157.5: a radiation worker is exposed to 3.5 maya/hr. if exposed for 45 minutes what is the dose
38. LeakageScatter: a secondary barrier is designed to absorb _____ radiation
39. Dosimeters: devices designed to measure total accumulated radiation intensity are called
40. Follow the concept of ALARA: what is the best approach to occupational radiation exposure
41. 0.25: the Bucky slot opening in the side of the table must be automatically covered with ____ mm Pb during
fluoroscopy
42. All of the above: health physics is concerned with minimizing radiation dose to
radiation physicists
radiation workers
the public
43. linearity: measuring the relationship between output intensities of adjacent mA stations is a test of
44. 5: the output intensities of reproduced exposures should not vary more than _____ % from each other
45. : an occupational radiation monitor records a dose 3mSv. What is the effective dose if the occupational dose is
received during fluoroscopy when a protective apron is worn? assume a tissue weighing factor for the thyroid is .05
46. .1%: the intensity of scatter radiation 1 meter from the patient is approx. ____ of the intensity of the incident beam
at the patient
2/8
