applenton/lange 8th ed review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| show | Tissue weighting factor (Wt) represents the relative tissue radiosensitivity of irradiated material (muscle vs intestinal epithelium vs bone)
🗑
|
||||
| 2. According to the National Council on Radiation Protection and Measurements (NCRP) the monthly gestational dose-equivalent limit for embryo/fetus of a pregnant radiographer is: | show 🗑
|
||||
| show | 6.87 mR
🗑
|
||||
| show | 1.48 mR (using inverse square law)
🗑
|
||||
| 5. All of the following statements regarding mobile radiographic equipment are true except? | show 🗑
|
||||
| show | lymphocytes
🗑
|
||||
| 7. guidelines for the use of protective shielding state that gonadal shielding should be used | show 🗑
|
||||
| 8. the interaction between ionizing radiation and the target molecule that is most likely to occur is the: | show 🗑
|
||||
| 9. what is the approximate entrance skin exposure (ESE) for the average anteroposterior (AP) supine abdomen radiograph? | show 🗑
|
||||
| 10. all of the following are generally used to help reduce patient dose except: 1. grid 2. collimator 3. gonad shield | show 🗑
|
||||
| 11. how will xray photon insensitivity be affected if the source-to-image distance (SID) is doubled? | show 🗑
|
||||
| show | 150 mSv (15 rem)
🗑
|
||||
| 13. occupational radiation monitoring is required when it is possible that the individual might receive more than: | show 🗑
|
||||
| show | terrestrial radionuclides and internal radionuclides
🗑
|
||||
| show | radiolysis
🗑
|
||||
| 16. which of the following contributes most to occupational exposure? A. photoelectric effect B. compton scatter C. classic scatter D. thompson scatter | show 🗑
|
||||
| 17. which of the following are used to account for differences in tissue characteristics when determining effective dose to biologic material? | show 🗑
|
||||
| show | compton scatter
🗑
|
||||
| 19. the exposure rate to a body 4ft from a source of radiation is 16 R/h. what distance from the source would be necessary to decrease the exposure to 6 R/h? | show 🗑
|
||||
| show | the ESE increases
🗑
|
||||
| 21. late radiation-induced somatic effects include: 1. thyroid cancer 2. cataracts 3. genetic mutations | show 🗑
|
||||
| show | 1/1000
🗑
|
||||
| 23. according to the NCRP the annual occupational whole-body dose equivalent limit is: | show 🗑
|
||||
| 24. a tld would use what crystal? | show 🗑
|
||||
| show | leakage and scatter radiation
🗑
|
||||
| show | focal size (the effect of focal spot size is principally on radiographic sharpness it has no effect on patient dose)
🗑
|
||||
| 27. the photoelectric effect is more likely to occur with: 1. absorbers having a high z number 2. high-energy incident photons 3. positive contrast media | show 🗑
|
||||
| show | radiation lethality
🗑
|
||||
| 29. in radiation protection, the product of absorbed dose and the correct modifying factor (radxQF) is used to determine A. roentgen (C/kg) B. rem (Sv) C. curie (Cu) D. radiation quality | show 🗑
|
||||
| show | wear a second dosimeter under the lead apron
🗑
|
||||
| show | occupational exposure
🗑
|
||||
| show | organ anomaly
🗑
|
||||
| show | will be less than if it were delivered all at one time
🗑
|
||||
| show | 90%
🗑
|
||||
| show | neurons and neuroglia (nondividing differential cells are specialized, mature cells that do not undgergo mitosis) they are rendered radioresistant. the adult nervous system is composed of nondividing cells and is the most radioresistent system in adult
🗑
|
||||
| 36. how does filtration affect the primary beam? | show 🗑
|
||||
| 37. what is the minimum lead requirement for lead apron, according to the NCRP | show 🗑
|
||||
| 38. an optically stimulated luminescence dosimeter contains which of the following detectors? | show 🗑
|
||||
| 39. immature cells are referred to as: 1. undifferentiated cells 2. stem cells 3. genetic cells | show 🗑
|
||||
| 40. what is the term used to describe x-ray photon interaction with matter and the transference of part of the photon's energy to matter? | show 🗑
|
||||
| 41. what is the approximate ESE for the average upright PA chest radiograph using 115 kvp and a grid? | show 🗑
|
||||
| show | be the dead man type
🗑
|
||||
| 43. primary radiation barriers must be at least | show 🗑
|
||||
| 44. the annual dose limit for occupational exposed individuals is valid for | show 🗑
|
||||
| show | FOV decreases
🗑
|
||||
| show | Rem (Sv)
🗑
|
||||
| show | a method of expressing raiation quality, a measure of the rate at which radiation energy is transferred to soft tissue
🗑
|
||||
| 52. Biologic material is least sensitive to irradiation under which of the following conditions? | show 🗑
|
||||
| 54. which type of dose-response relationship represents radiation-induced leukemia and genetic effects | show 🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
jhill106
Popular Radiology sets