Radiology module 12

Question 0

The film first enters the —

Answer 0

Developer

Question 1

What are the two purposes of film processing

Answer 1

To produce the latent image to be seen (develop)

To preserve the image so it doesn’t disappear (fix)

Question 2

The developer reduces the —- halide crystals into —- — — and creates the — areas of the radiograph

Answer 2

Energized
Black metallic silver
Dark/Lucent

Question 3

With manual developing: After the film goes through the developer the film goes?

Answer 3

To be rinsed

Question 4

After the first rinsing the film goes to the — which removes the — crystals and creates the — areas on the film

Answer 4

Fixer
Unexposed
White/opaque

Question 5

After the fixing process the films are – then —

Answer 5

Washed

Dried

Question 6

The films are rinsed after the developer stage so as to?

Answer 6

Preserve acidity of fixer solution

Question 7

After the processing process films are now called —

Answer 7

Radiographs

Question 8

The black areas on the film are from —- tissues allowing x-rays to penetrate —–

Answer 8

Softer

More

Question 9

The opaque/ lighter areas are made from—- allowing x-rays to penetrate —-

Answer 9

Denser tissues (Bone, enamel)
Less

Question 10

The purpose of the developer solutions reducing/developing agent?

Answer 10

Reduce exposed (bromide) crystals to black metallic silver

Question 11

What is the purpose of the preservative of the developer solution?

Answer 11

thesis down the oxidizing rate of the developing agents

Question 12

What is the purpose of the alkalizer/activator of the developer?

Answer 12

soften the gelatin so the developing agents can reach the crystals.

Question 13

What is the purpose of the restrainer of the developer?

Answer 13

“Restrains” the activity of the developing agent and helps prevent film fog

Question 14

What is the purpose of the fixing/clearing agent of the fixer?

Answer 14

To remove “clear” all unexposed silver (bromide) crystals

Question 15

What is the purpose of the preservative in the fixer?

Answer 15

Prevent the decomposition of the clearing agent

Question 16

What is the purpose of the hardener in the fixer?

Answer 16

To re-harden and shrink the emulsion

Question 17

What is the purpose of the acidizer in the fixer?

By what means does it achieve this?

Answer 17

stop further developing!

Neutralizing the alkali of the developer

Question 18

If we do not rinse after developing the film may come out?

Answer 18

Black due to overdevelopment

Question 19

If we don’t rinse after fixing the film may?

Answer 19

Turn out light or not have an image at all

Question 20

If you leave your films in water for a long time what happens?

Answer 20

Removes your image

Question 21

The colder the temperature of solutions the — the developing time!

Answer 21

Longer

Question 22

80 degree solutions takes — min in the developer

60 degree solutions takes — min in the developer

Answer 22

3

9

Question 23

The ideal temperature and time are?

Answer 23

68 degrees for 5min

Question 24

What is a "wet read"

Answer 24

Where you only put film in fixer for 3-4min then take them out to read them!

Question 25

If you don't return "wet read" films to the fixer what will happen?

Answer 25

Turn brown

Question 26

Factors that can affect solution life

Answer 26

Oxidation (air exposure) Evaporation Every day use Chemical contamination

Question 27

How often should you change/clean tanks of system?

Answer 27

2-3 weeks

Question 28

You should verify the volume of the solutions how often?

Answer 28

Daily

Question 29

How do you dispose of Fixer solution

Answer 29

Recovered by regulatory agency

Question 30

How do you dispose of the lead foils in the film?

Answer 30

Keep in seperate container and they are picked up by regulatory agency

Question 31

Film fog can be caused by what processing errors?

Answer 31

``` Imbalance of processing solutions (chemical fog) Light leaks (safe lights) Scatter radiation (bad storage of film) Stored in too warm/ humid place Aging (past date of use) ```

Question 32

If the film comes out blank what could have happened?

Answer 32

Put in fixer first Left in water too long No exposure

Question 33

The developer has what PH

Answer 33

Alkaline

Question 34

The purpose of the first rinsing is to?

Answer 34

To remove alkaline developer solution | Preserve acidity of fixer solution

Question 35

Light film or underdeveloped film can be cause by?

Answer 35

Too cold of developer Too low kvp Film under exposed (low impulses)

Question 36

Overdeveloped or dark films can be caused by?

Answer 36

Developer being too warm Film being overexposed (too high of impulses) Too high kvp