OHIO GXMO UPDATED SET QUESTIONS AND
ANSWERS SET A+
✔✔What technique chart is used for tissue thickness calipers to measure the part? -
✔✔Fixed kVp chart, Variable kVp chart
✔✔What does grid cutoff mean? - ✔✔primary radiation removed by a grid if used
incorrectly
✔✔What is the traditional unit of absorbed dose? - ✔✔RAD
✔✔SI unit of the absorbed dose - ✔✔Gray
✔✔Tradition unit of exposure in air - ✔✔Roentgen
✔✔Traditional unit of radiation equivalent - ✔✔rem
✔✔SI unit of radiation equivalent - ✔✔Seivert
✔✔Traditional unit used to denote pts dose - ✔✔RAD
✔✔Traditional unit used to denote operator dose - ✔✔rem
✔✔Dose in RAD multiplied by a quality factor gives the dose in.. - ✔✔rem
✔✔Gray equals 100 - ✔✔RAD
✔✔1 Seivert equals 100 - ✔✔rem
✔✔SI unit of exposure in air - ✔✔Coulombs/kg
✔✔Average annual dose from background radiation - ✔✔0.360
, ✔✔Cumulative dose limit for 50 year old radiation worker - ✔✔50 rem
✔✔Annual dose limit for the general public - ✔✔0.1 rem
✔✔Total equivalent dose for the embryo/fetus during gestation - ✔✔0.5 rem
✔✔Annual dose limit for an occupationally exposed radiation worker - ✔✔5 rem
✔✔What are the least radiosensitive cells? - ✔✔Nerve cells, muscle cells, highly
differentiated cells
✔✔What are the most highly radiosensitive cells? - ✔✔Lymphocytes, spermatogonia,
immature cells, highly mitotic cells, highly metabolic cells
✔✔Hematologic syndrome - ✔✔death due to infection, hemorrhage and 200-2000 rads
whole body dose
✔✔Central Nervous System syndrome - ✔✔5000+ rads whole body dose, cause of
death: increased intracranial pressure, vasculitis, meningitis.
✔✔Gastrointestinal syndrome - ✔✔Death due to severe damage to intestinal lining,
1000-1500 rad whole body dose
✔✔Long term somatic effects - ✔✔Carcinogenesis, cataractogenesis, life span
shortening, leukemia
✔✔Short term somatic effects - ✔✔Erythema (2,000 mSv)
✔✔What type of monitor is sensitive to 10 millirem? - ✔✔Film badge
✔✔What type of monitor is sensitive to 1 millirem? - ✔✔OSL
✔✔What type of monitor is changed quarterly? - ✔✔OSL
✔✔What type of monitor is changed monthly? - ✔✔Film badge
✔✔What type of monitor is scanned with a laser? - ✔✔OSL
✔✔Bucky grid - ✔✔Moves, you can push out and pull in and has a ratio of 12:1 - 16:1.
✔✔Stationary Grid - ✔✔Permanent, this is inside of the table and has a ratio of 8:1 -
12:1.
ANSWERS SET A+
✔✔What technique chart is used for tissue thickness calipers to measure the part? -
✔✔Fixed kVp chart, Variable kVp chart
✔✔What does grid cutoff mean? - ✔✔primary radiation removed by a grid if used
incorrectly
✔✔What is the traditional unit of absorbed dose? - ✔✔RAD
✔✔SI unit of the absorbed dose - ✔✔Gray
✔✔Tradition unit of exposure in air - ✔✔Roentgen
✔✔Traditional unit of radiation equivalent - ✔✔rem
✔✔SI unit of radiation equivalent - ✔✔Seivert
✔✔Traditional unit used to denote pts dose - ✔✔RAD
✔✔Traditional unit used to denote operator dose - ✔✔rem
✔✔Dose in RAD multiplied by a quality factor gives the dose in.. - ✔✔rem
✔✔Gray equals 100 - ✔✔RAD
✔✔1 Seivert equals 100 - ✔✔rem
✔✔SI unit of exposure in air - ✔✔Coulombs/kg
✔✔Average annual dose from background radiation - ✔✔0.360
, ✔✔Cumulative dose limit for 50 year old radiation worker - ✔✔50 rem
✔✔Annual dose limit for the general public - ✔✔0.1 rem
✔✔Total equivalent dose for the embryo/fetus during gestation - ✔✔0.5 rem
✔✔Annual dose limit for an occupationally exposed radiation worker - ✔✔5 rem
✔✔What are the least radiosensitive cells? - ✔✔Nerve cells, muscle cells, highly
differentiated cells
✔✔What are the most highly radiosensitive cells? - ✔✔Lymphocytes, spermatogonia,
immature cells, highly mitotic cells, highly metabolic cells
✔✔Hematologic syndrome - ✔✔death due to infection, hemorrhage and 200-2000 rads
whole body dose
✔✔Central Nervous System syndrome - ✔✔5000+ rads whole body dose, cause of
death: increased intracranial pressure, vasculitis, meningitis.
✔✔Gastrointestinal syndrome - ✔✔Death due to severe damage to intestinal lining,
1000-1500 rad whole body dose
✔✔Long term somatic effects - ✔✔Carcinogenesis, cataractogenesis, life span
shortening, leukemia
✔✔Short term somatic effects - ✔✔Erythema (2,000 mSv)
✔✔What type of monitor is sensitive to 10 millirem? - ✔✔Film badge
✔✔What type of monitor is sensitive to 1 millirem? - ✔✔OSL
✔✔What type of monitor is changed quarterly? - ✔✔OSL
✔✔What type of monitor is changed monthly? - ✔✔Film badge
✔✔What type of monitor is scanned with a laser? - ✔✔OSL
✔✔Bucky grid - ✔✔Moves, you can push out and pull in and has a ratio of 12:1 - 16:1.
✔✔Stationary Grid - ✔✔Permanent, this is inside of the table and has a ratio of 8:1 -
12:1.
