Producing an X-Ray

Question 1

Single emulsion film is most commonly used in vet med following which procedure?

Answer 1

MRI/CT

Question 2

What is the benefit of screened film over non-screened?

Answer 2

decrease in exposure time

Question 3

Which phosphor is most commonly used in blue sensitive film?

Answer 3

Ca tungstate

Question 4

Film with larger crystals will be

Answer 4

faster, less detailed.

Question 5

non-screened film is commonly used

Answer 5

in dental images

Question 6

What are double emulsion films?

Answer 6

have a protective coat on both sides

Question 7

What is the film emulsion layer made up of?

Answer 7

silver halide crystals.

Question 8

What is the latent image?

Answer 8

The image on a piece of film after exposure, but can’t be seen before development.

Question 9

What affects film speed and what are the ratings?

Answer 9

• size of the silver halide crystals.
• high-speed, average speed (par), and slow (detailed).

Question 10

The pH of the fixer chemical is

Answer 10

acidic

Question 11

most states have a requirement to trap elemental silver from which chemicals after processing?

Answer 11

fixative

Question 12

What stage removes silver halide crystals

Answer 12

fixer stage

Question 13

how far away should safelights be from the work area

Answer 13

4 feet

Question 14

What is the correct wattage for a safelight bulb

Answer 14

7-10 watts

Question 15

what is the pH of the developer

Answer 15

strong alkaline

Question 16

What is the restraining agent used in developer

Answer 16

potassium bromide

Question 17

what causes a silver halide black tree pattern artifact

Answer 17

static electricity during handling

Question 18

What are the components of the developer

Answer 18

developing agent, activator, restrainer, preservative, hardener, and solvent

Question 19

What to kV and mA control?

Answer 19

kV - penetrating power
mA - density of the film

Question 20

contrast is dependent on

Answer 20

increase or decrease in mA and time

Question 21

what corrections must be made if the film is too dark?

Answer 21

decrease mAs 30-50%

Question 22

what correct must be made if the film is too light?

Answer 22

increase kVp 10-15%

Question 23

When taking rads of the extremities, the contrast should be?

Answer 23

high contrast

Question 24

What are the guidelines for incremental changes when adjusting mAs and kVp?

Answer 24

kVp changed 10%-15%, mAs 30-50%

Question 25

What is the best example on contrast from least to most dense?

Answer 25

gas, fat, fluid, bone, metal.

Question 26

What happens if the xray tube is moved closer to the table than the technique chart is designed for?

Answer 26

the film will come out too dark.

Question 27

What four areas are evaluated to determine rad quality?

Answer 27

film contrast, density of the image, proper positioning, labeling.

Question 28

What are the components of the fixer

Answer 28

fixing agent, acidifier, preservative, hardener, and solvent