Artifacts I
Artifacts II
Contrast
Density
Adjustments
100
Patient movement causes this.
What is blurring?
100
What your fingers should not be when handling a radiograph.
What is sweaty?
100
The factors that affect radiographic contrast.
What are kVp and subject contrast?
100
You must do this if you want to double the radiographic density.
What is double the mAs?
100
You need to do this to your mA when radiographing a patient with large muscles or heart.
What is increase?
200
Static electricity causes this.
What is black tree-like images?
200
This artifact occurs when hand processing chemicals are not stirred.
What is a wave pattern?
200
The type of contrast desired for a bone radiograph.
What is high contrast or short scale contrast?
200
The degree of density is best checked on this area of a radiograph.
What is the background?
200
You need to do this to your mA when radiographing a patient with a plaster cast.
What is increase?
300
This is seen when you grab a film in the middle or crease the film.
What is black semi-circles?
300
This happens when the femurs are not parallel to the cassette.
What is foreshortening?
300
The definition of this is the difference in density and mass between 2 adjacent anatomic structures.
What is subject contrast?
300
Factors that affect radiographic density.
What are mA, time, SID or FFD, kVp, developing time, developer temperature, film used, tissue density?
300
You need to do this to your mA when radiographing a patient that is emaciated.
What is decrease?
400
This is what it is called when you exposed a film, forget to change out the cassette and expose the same film again.
What is a double exposure?
400
This causes generalized heavy lines on the radiograph.
What is roller marks?
400
The most common cause of poor radiographic contrast.
What is inappropriate exposure factors?
400
The term for overall blackness on a radiograph.
What is radiographic density?
400
You need to do this to your mA when radiographing a neonatal patient.
What is decrease?
500
A white speckle-patterned artifact, seen best in the black area of an x-ray, caused by worn-out intensifying screens.
What is screen craze?
500
"is it an artifact", "caused during the exposure", caused in the darkroom", caused by the processor", "visible by reflected or transmitted light", "is it reproducible"?
What is things you should ask yourself when identifying the cause of an artifact.
500
This is what low contrast looks like on a radiograph and the type of tissue this contrast is preferred for.
What is many shades of gray, soft tissue
500
If your density is too high you would decrease your mAs by this much. If you are overpenetrated you would decrease your kVp by this much.
What is 30-50%, 10-15%
500
You need to do this to your mA when radiographing a patient with pleural effusion or ascites.
What is increase?
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