Exam Style Questions 1

Question 1

True/False: Thermionic emission is the process in which electrons are generated in a cloud surrounding the cathode?

Answer 1

True

Question 2

The emulsion layer in traditional radiography film does what?

Answer 2

Contains photosensitive silver halide crystals

Question 3

A disadvantage on non screen film in flex-cassettes sometimes used in digital radiography?

Answer 3

Poor film-film screen contact

Question 4

Inverse square law used in radiography exposure calculations is due to which physics law?

Answer 4

The penumbra effect

Question 5

True/False: Barium has a high atomic number making it appear black on a radiograph?

Answer 5

False

Question 6

Before conducting GI study contrast radiography, it is important to…..?

Answer 6

Patient will need an emema

Question 7

What should be considered when drying wet processed radiography film?

Answer 7

• remove frames during processing
• dust free environment
• avoid film-film contact

Question 8

CT can be used to gain optimal images of?

Answer 8

Soft tissues with body cavities such as the thorax

Question 9

True/False: In wet processing, development is also known as ‘reduction’ and is the separation of AgBr into the two chemical elements Silver and Bromide. This darkens the x-ray film?

Answer 9

False

Question 10

What must a nurse ensure when recovering the patient from myelography?

Answer 10

Keep head elevated

Question 11

The function of the subbing layer in radiography film is?

Answer 11

Adhesive

Question 12

The risk of anaphylaxis is reduced when using what?

Answer 12

Barium enema, Low osmolar non-ionic iodine, C02

Question 13

In the MRI machine, the RF coil is responsible for what?

Answer 13

Emitting and collecting non ionising radiowaves

Question 14

The light unit within indirect digital radiography that generates light when exposed to x-ray photos is what?

Answer 14

Scintillation layer

Question 15

A grid factor is?

Answer 15

the multiplication factor used to calculate the new mAs if a grid is needed

Question 16

Orthochromatic screen film is sensitive to what colour light emitted from the intensifying screens?

Answer 16

Blue and green - rare earth screens

Question 17

Waste disposal regulations for wet radiography chemical disposal, states records of disposal must be kept for how long?

Answer 17

3 yrs

Question 18

True/False: Intensifying screens contain phosphorescent crystals that glow when exposed to x-ray photons?

Answer 18

True

Question 19

Correct dark room light colour suitable for calcium tungstate, blue light emitting rare earth screen is?

Answer 19

Brown or orange

Question 20

True/False: A laser in the CR reader, scans the imaging plate resulting in the release of trapped electrons?

Answer 20

True

Question 21

What is the period of time before the x-ray image taken using CR imaging cassette begins to deteriorate?

Answer 21

2 hrs

Question 22

True/False: Computed radiography still uses a type of cassette which contains an imaging plate rather than a traditional film.

Answer 22

True

Question 23

What are the three types of stationary grid?

Answer 23

Parallel, pseudo-focused, crossed

Question 24

What is the replacement of the traditional x-ray film in direct digital radiography?

Answer 24

Flat Panel Detector

Question 25

What is the purpose of the anode in the tube head?

Answer 25

Produces positive charge attracting electrons from the cathode