Term
| Why should the top of an automatic film processor be opened when it is shut down? |
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Definition
| condensation can cause cross-contamination of developer and fixer |
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Term
| Which automatic film processor replenishment rate is highest? |
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Definition
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Term
| Which sensitrometic measures of processor quality control would be expected as a result of developer contamination by fixer? |
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Definition
increased base + fog decreased speed |
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Term
| Which of the following would increase radiographic density? |
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Definition
increased developer temperature low temperature in film storage area decreased fixing time |
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Term
| What causes black cresent half moon artifacts on a radiograph? |
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Definition
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Term
| What is a typical fixer replenishment rate for an automatic film processor? |
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Definition
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Term
| Which of the following are functions of an automatic processor transport system? |
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Definition
control of film immersion time agitation of solutions |
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Term
| Which of the following are appropriate for the identification blocker area of the film? |
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Definition
Pt. name Procedure performed |
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Term
| Which conditions will cause static discharge artifacts on the film? |
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Definition
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Term
| Which of the following is the most likely result of an improperly seated crossover network in an automatic film processor? |
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Definition
| White lines the length of the radiograph - caused by scaraping of the emulsion |
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Term
| Which of the following are potential causes of films exiting an automatic processor with an overall light gray appearance, lacking white or completely black densities? |
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Definition
weak developer solution developer solution contamination |
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Term
What is the proper method of mixing concentrated film processing solutions? |
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Definition
| add concentrated chemicals to water |
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Term
| Which of following are subsystems of an automatic processor transport system? |
|
Definition
crossover network transport rack drive system |
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Term
| Which of the following would cause white artifacts on a radiograph? |
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Definition
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Term
| Which of the following contribute to the regulation of solution temp. in an automatic film processor? |
|
Definition
recirculation system developer heater |
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Term
| What is an appropraite power light bulb for a safelight approx. 4 feet from the film bench? |
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Definition
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Term
| Which of the following could produre increased base + fog levels during sensitometric evaluation of radiographic film? |
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Definition
fixer fumes increased developer temp. |
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Term
| Which of the following sensitometric measures of processor quality control would be expected as a result of a clogged developer replenishment filter? |
|
Definition
decreased speed lower contrast index |
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|
Term
| What is a typical developer replenishment rate for an automatic fil processor? |
|
Definition
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Term
| Who is responsible for recording identification info on the radiograph correctly? |
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Definition
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Term
| What is a typical automatic processor dryer air temp? |
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Definition
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Term
| Which of the following colors is acceptable for darkroom walls and working benches? |
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Definition
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Term
| Why do crossover networks require cleaning more often than transport rollers? |
|
Definition
| they are positioned partly in solution and partly in air which permits chemical deposits to readily accumulate. |
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Term
| Which of the following sensitometric measures of processor Q.C. would be expected as a result of an increase in developer temp.? |
|
Definition
increase in base + fog lower contrast index |
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Term
| What causes an artifact that is repeated at regular intervals for a length of the radiograph? |
|
Definition
| dirt on a processor transport roller |
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|
Term
| Which of the following would cause jamming of films in an automatic processor? |
|
Definition
improperly seated crossover networks improperly seated transport racks improperly aligned films on feed tray |
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|
Term
| Which of the following are most likely to be the cause of white lines occuring over the length of a radiograph processed in an automatic film processor? |
|
Definition
improperly seated crossover network maladjusted guide shoe deflectors |
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Term
| Which of the following are potential causes of film exiting an automatic processor with a slimy, wet feel? |
|
Definition
| insufficient washing and drying |
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Term
| What devices are used in an automatic film processor to turn the film at the bottom and top of each solution tank? |
|
Definition
| crossover networks and guide shoes |
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Term
| What types of artifacts ocur as a result of static discharge in the darkroom? |
|
Definition
black tree branching black smudges |
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Term
| Which of the following should be avoided when loading radiographic cassettes? |
|
Definition
fully opening cassette on darkroom loading bench using lotion in hands wearing a ring with a large stone |
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Term
| Which of the following are acceptable base + fog optical density levels? |
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Definition
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Term
| Why is it critical that immediate notification be given if a film bin is accidentally left open in full light? |
|
Definition
| to avoid repeated exposures to patients due to fogged films |
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Term
| What is the cause of a pi line artifact on a radiograph? |
|
Definition
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Term
| Which automatic processor system removes excess water and shrinks and seals the emulsion? |
|
Definition
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|
Term
| Which of the following helps prevent oxidation of the developer? |
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Definition
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Term
| The amount of replenishment solution added to the automatic processor is determined by: |
|
Definition
size of the film position of film on tray feeding into the processor required for film to enter processor |
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Term
| Which if the following can result from poor storage or handling practices? |
|
Definition
film fog from outdated film film fog from exposure to excessive temps. film fog from exposure to chemical fumes |
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Term
| An unexposed and processed x-ray film has a small but measurable density called? |
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Definition
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|
Term
| The developer temp. in an automatic processor should be kept at? |
|
Definition
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|
Term
| An unexposed and processed film will have a density of about |
|
Definition
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Term
| The functions of the fixer in film processing are to: |
|
Definition
remove the unexposed silver halide crystal harden the emulsion
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Term
| The darkroom should be construsted and equipped to avoid: |
|
Definition
external light leaks film bin light leaks safelight fog |
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Term
| Exposed silver halide crystals are changed to black metallic silver by: |
|
Definition
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