Quality Control Exam Questions with 100%
Verified Answers
The ability of a radiographic unit to produce a constant radiation output for
various combinations of mA and exposure time is called.? - ✔️✔️Exposure linearity
Exposure linearity is determined by a..?
This measures radiation intensity at various combinations of mA and exposure
time
Exposure linearity must be within..?
This test should be evaluated annually or whenever any change or repair of
operating console or generator occurs - ✔️✔️Precision radiation dosimeter
10% for mA station
If, when using any combination of kVp, mA and exposure time, the RT decides to
change on factor and then return to the previous value of radiation exposure, the
previous value should be precisely the same, this is known as?
2 methods used to evaluate this both use a radiation dosimeter, and
mathematical formulas can be used to determine this in both cases
Output radiation intensity should not bary by more than..? - ✔️✔️Exposure
reproducibility
5%
Require periodic attention to minimize appearance of artifacts
-Localized lack of sharpness on radiographs
Screens cleaned with soft, lint-free cloth and cleaning solution
How often depends on workload of department
, Not less than every other month - ✔️✔️Intensifying screens
Aprons, gloves, and gonadal shielding should be radiography or fluoroscopy..? for
defects
Cracks, tear, or holes require replacement of apparel - ✔️✔️Annually
Filmbox illuminators should be photometrically analyzed..?
Used to measure light intensity at several areas of illuminator?
Intensity should be at least?
Should not vary more than..? over surface of illuminator
All bulbs should match and be replaced at same time so that the lightning is even
- ✔️✔️Annually
Photometers
1500 cd/m^2
10%
Exposure rate-Federal law and most states require that ESE (entrance skin
exposure) shall not exceed..?
For interventional fluoro may be equipped with a high level control
This allows an ESE up to..? - ✔️✔️10R/min (100mGy/min
20R/min (200mGy/min)
Measurements of fluoro are made with calibrated radiation..?
This ensures that these levels are not exceeded
Verified Answers
The ability of a radiographic unit to produce a constant radiation output for
various combinations of mA and exposure time is called.? - ✔️✔️Exposure linearity
Exposure linearity is determined by a..?
This measures radiation intensity at various combinations of mA and exposure
time
Exposure linearity must be within..?
This test should be evaluated annually or whenever any change or repair of
operating console or generator occurs - ✔️✔️Precision radiation dosimeter
10% for mA station
If, when using any combination of kVp, mA and exposure time, the RT decides to
change on factor and then return to the previous value of radiation exposure, the
previous value should be precisely the same, this is known as?
2 methods used to evaluate this both use a radiation dosimeter, and
mathematical formulas can be used to determine this in both cases
Output radiation intensity should not bary by more than..? - ✔️✔️Exposure
reproducibility
5%
Require periodic attention to minimize appearance of artifacts
-Localized lack of sharpness on radiographs
Screens cleaned with soft, lint-free cloth and cleaning solution
How often depends on workload of department
, Not less than every other month - ✔️✔️Intensifying screens
Aprons, gloves, and gonadal shielding should be radiography or fluoroscopy..? for
defects
Cracks, tear, or holes require replacement of apparel - ✔️✔️Annually
Filmbox illuminators should be photometrically analyzed..?
Used to measure light intensity at several areas of illuminator?
Intensity should be at least?
Should not vary more than..? over surface of illuminator
All bulbs should match and be replaced at same time so that the lightning is even
- ✔️✔️Annually
Photometers
1500 cd/m^2
10%
Exposure rate-Federal law and most states require that ESE (entrance skin
exposure) shall not exceed..?
For interventional fluoro may be equipped with a high level control
This allows an ESE up to..? - ✔️✔️10R/min (100mGy/min
20R/min (200mGy/min)
Measurements of fluoro are made with calibrated radiation..?
This ensures that these levels are not exceeded
