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RT 210 > Film Processing Part 1 > Flashcards

Film Processing Part 1 Flashcards

1
Q

Most modern medical imaging departments use ———- and most of these are ———–

A
  • automatic processors
  • daylight processors
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2
Q

Basic Components of a darkroom (4)

A
  1. An automatic processor
  2. Workbench
  3. A film bin
  4. Storage shelves
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3
Q

Only 1 side is located inside the darkroom

A

Automatic processor

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4
Q

where the cassettes are placed for unloading and loading film

A

Workbench

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5
Q

Top surface of a workbench should be made of a ——–, ——–

A

durable, static-resistant material

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6
Q

is used to store films that have been removed from their lighttight boxes in which are shipped

They are placed in the bin so they can be easily accessed to re-load emptied cassettes

A

Film bin

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7
Q

The film bin contains ———- that vary in depth and hold ——- of radiographic film

A
  1. individual slots
  2. various sizes
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8
Q

commonly located either under the workbench. These shelves are used to store boxes of radiographic films

A

Storage shelves

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9
Q

2 types of lights in Darkrooms

A

White lights and Safelights

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10
Q

2 types of lights in Darkrooms

A

White lights and Safelights

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11
Q

are used for equipment repair and darkroom cleaning

A

White Lights

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12
Q

are used during film processing to provide enough illumination for personnel to see but protect the film that has been removed from the cassettes and film bin from light fog

A

Safelights

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13
Q

Safelights use either a —— or a ——— recessed within a ——— fixture

A
  1. 7.5-watt or 15-watt incandescent bulb
  2. metallic light fixture
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14
Q

is attached to the front of the light fixture to prevent white light from reaching the film

A

A special colored filter

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15
Q

what is the most commonly used radiographic film ? and sensitive to all colors except ?

A

orthochromatic , red

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16
Q

what is the safelight filter commonly used in coventional radiographic darkrooms?

A

GBX-2 filter

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17
Q

This increased sensitivity to safelight illumination is called?

A

Latensification

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18
Q

Fogging of film by safelight illumination after it has been radiographically exposed and appears as an undesirable supplemental blanket of density on the processed radiographic image

A

post-exposure fog

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19
Q

Safelights are commonly mounted in the darkroom either on the ——- or directly over the ——- of the automatic processor

A

ceiling or directly over the film feed tray of the automatic processor

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20
Q

The safelight should be mounted at least ——- from the feed tray or work bench when a 7.5-watt bulb is used

A

3 feet

21
Q

——— for a 15-watt bulb from the feed tray or work bench to avoid fogging the film

A

4 feet

22
Q

used to protect the film from x-rays are inefficient toward stopping the highly penetrating gamma radiation emitted by radioactive pharmaceuticals

A

Lead-lined walls

23
Q

optimal temperature for unused film

A

50-70° F

24
Q

optimal relative humidity range for unused film

A

40-60° F

25
Q

are stored either inside or outside the darkroom and used are to replenish the processing chemicals in the automatic processor

A

Processing chemicals

26
Q

Chemicals can be either be stored in large round plastic tanks

A

replenishment tanks

27
Q

designed to reclaim silver from processor’s fixer tank located in the vicinity of the replenishment tanks

A

Silver recovery unit

28
Q

similar to most room doors, A manual locking knob or latch prevents personnel outside of the darkroom

A

Single-hinged door

29
Q

similar to most room doors, A manual locking knob or latch prevents personnel outside of the darkroom

A

Single-hinged door

30
Q

similar to most room doors, A manual locking knob or latch prevents personnel outside of the darkroom

A

Single-hinged door

31
Q

offers much more protection than single-door entrance, as either door is opened, microswitch signals a locking mechanism on the other door

A

A double-door entrance

32
Q

makes up approximately 3/4 of the circle. It is bordered by, and glides within, two 360-degree tracks; one attached to the ceiling and one attached to the floor

A

Sliding curved revolving door

33
Q

does not use a door at all. Instead, there is a minimum of 2 hallways that run parallel to each other

A

maze-type entrance

34
Q

allows persons to enter and exit the darkroom with no risk of film fogging, but requires a large area for its layout

A

maze-type entrance

35
Q

wall-mounted, strategically placed between the radiographic rooms and the darkroom or between the viewing area and the darkroom

A

Passbox

36
Q

After radiographic films are processed they are hung on a —–

A

viewbox

37
Q

base of radiographic film provides the rigidity needed to facilitate the insertion of the film into these tension clamps

A

polyester base

38
Q

Viewboxes contain multiple ———

A

fluorescent bulbs

39
Q

What is the exterior and interior surfaces of a viewbox’s material

A

Plexiglas

40
Q

device used to measure light intensity

A

light meter/photometer

41
Q

light intensity units are called

A

lux or foot-candles

42
Q

A typical radiographic film viewbox should have a minimum luminance

A

5382 lux or 500 foot-candles

43
Q

special lights used by radiologists to evaluate radiographic images that are either grossly overexposed or to evaluate a specific area of the anatomical image that is overexposed relative to surrounding areas

A

hotlights

44
Q

to deposit enough black metallic silver at the latent image sites in film to permit a permanent visible image to form

A

The primary purpose of radiographic processing

45
Q

is the most sensitive and variable factor in the production of a radiograph

A

Film processing

46
Q

Processing of a radiograph involves four primary steps

A
  • developing, fixing
  • washing and drying (two archiving steps)
47
Q

Are accomplished in solutions that combine numerous chemicals

A

Developing and fixing

48
Q

involves a two-step process of washing and drying the radiograph for use as a medical record

A

Archiving

49
Q

involves a two-step process of washing and drying the radiograph for use as a medical record

A

Archiving

RT 210 (3 decks)

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