Deck 4: Imaging

Question 1

The uneven distribution of the x-ray beam intensity emitted from the x-ray tube is referred to as the .

A)unbalanced beam
B)beam variant
C)heel effect
D)Unleveled effect

Answer 1

heel effect

Question 2

Fluoroscopy is typically used during which of the following?

A)gastrointestinal studies
B)myelograms
C)cardiovascular studies
D)all of the above

Answer 2

all of the above

Question 3

The diagnostic imaging technique that produces images as slices through a patient's body is referred to as .

A)computed tomography
B)sliced radiology
C)sectional imaging
D)none of the above

Answer 3

computed tomography

Question 4

When performing radiographs on a small exotic patient, such as birds, rodents, or reptiles, which of the following positions is most often used for standard whole body viewing?

A)Ventrodorsal
B)Dorsoventral
C)Obliques
D)Anterior / posterior

Question 5

In general, what is the effect that milliampere seconds (MAS) have on radiographic film?

A)Lowering the MAS creates less overall black
B)Raising the MAS creates less overall white
C)Changing the MAS has no effect on contrast
D)All of the above

Question 6

Assuming that the source of the x-rays used in conventional diagnostic radiology is the x-ray tube, what are the two parts of the tube called that are responsible for creating the beam?

A)Anode and cathode
B)Particle beam accelerator and Neutron Convertor
C)The warp drive and the Light Speed Enabler
D)Ballast and Electrode

Question 7

Due to possible state and local government regulations, a radiology log should include which of the following sets of information?

A)The number and size of images/Technique
B)The area of the body imaged/Patient Name
C)The amount of chemical restraint/drug name
D)Both A and B

Question 8

What information should be provided on the radiograph for medical records purposes?

A)Patient identification number
B)Date
C)Hospital name
D)Part of anatomy radiographed
E)All of the above

Question 9

What is the purpose of leaded left and right markers?

A)They identify the direction the patient is facing.
B)They identify the extremity or the side on which the patient is positioned.
C)They identify which way the radiograph should be viewed.
D)They identify which side of the patient is closest to the tube.

Question 10

Nonluminous electromagnetic radiations are referred to as ?

A)Gamma rays
B)Beta rays
C)Radio rays
D)X-rays

Question 11

The degree to which a substance allows x-rays to pass is referred to as .

A)Radiolucency
B)Radio-opacity
C)Radiopathology
D)Radio-opaque

Question 12

The degree to which a substance absorbs x-rays is referred to as .

A)Radiolucency
B)Radio-opacity
C)Radiopathology
D)Radio-opaque

Question 13

What percentage of energy is lost as heat in the x-ray tube?

A)50%
B)75%
C)30%
D)99%

Question 14

Which of the following is true regarding scatter radiation?

A)Decreases film quality
B)Increases radiation exposure to personnel and patients
C)Contributes to radiographic density
D)All of the above

Question 15

What are some of the reasons one should avoid holding a portable x-ray unit during use?

A)Its heavy.
B)It places the operator too close to scatter radiation.
C)It can decrease film quality due to motion.
D)A and C
E)B and C

Question 16

Which type of x-ray film would be best suited for taking intraoral radiographs?

A)Screen film
B)Non-screen film
C)Rare earth film
D)Pocket film

Question 17

What is the purpose of a grid?

A)It is a piece of personal protective equipment.
B)Collimates the primary x-ray beam to focus and limit scatter radiation.
C)Only allows the primary x-ray beam to pass through and prevents scatter radiation from affecting the film.
D)None of the above.

Question 18

Where is the Potter-Bucky diaphragm located?

A)Hogwarts
B)Under the table
C)X-ray tube
D)Cassette

Question 19

How many tanks should a hand processing unit have?

A)1
B)2
C)3
D)4

Question 20

What hazard(s) should x-ray film be protected from?

A)Light
B)Radiations
C)Heat
D)Moisture
E)All of the above

Question 21

What is the by-product that can be recovered and removed from x-ray film emulsion?

A)Gold
B)Bronze
C)Steel
D)Silver

Question 22

Which tissues are affected most by radiation?

A)Smooth muscle
B)Slow division
C)Rapid division
D)Adhesive

Question 23

What is the term used to describe the maximum dose of radiation a person is allowed to receive over a certain time?

A)Maximum Permissible Dose
B)Maximum Permitted Dose
C)Maximum Prescribed Dose
D)Maximum Perpetrated Dose

Question 24

At what level should a person taking radiographs wear their film badge or dosimeter?

A)At the groin
B)On their back
C)At the armpit
D)At the thyroid

Question 25

Which individuals should not be permitted in the radiology room?

A)Invalids
B)Pregnant women
C)Persons less than 18 years of age
D)All of the above
E)B and C

Question 26

Which precaution(s) should be taken when taking radiographs?

A)Always use a collimator.
B)Always wear a lead apron and gloves.
C)Always double check exposure settings, beam settings, and patient positioning.
D)All of the above.

Question 27

What are the "big three" methods of radiation protection?

A)Distance, Shielding, and Knowledge
B)Time, Distance, and Shielding
C)Time, Distance, and Quality
D)Time, Shielding, and Positioning

Question 28

Which is an example of a negative contrast agent?

A)Barium
B)Iodine
C)Air
D)None of the above

Question 29

A contrast study where a negative contrast is used in combination with barium sulfate is called (a) .

A)Negative-barium study
B)Double-contrast study
C)Contrast medium
D)Contrast radiography

Question 30

The administration of radioactive iodine in the treatment of hyperthyroidism and thyroid tumors is an example of .

A)Diagnostic nuclear medicine
B)Computed tomography
C)Therapeutic nuclear medicine
D)Radioactive medicine

Question 31

When performing conventional radiographs on a veterinary patient, which of the following positions allow for optimal standard viewing of the thoracic cavity?

A)Lateral and oblique
B)Caudocranial and dorsoventral
C)Ventrodorsal and oblique
D)Lateral and dorsoventral

Question 32

When performing radiographs on a veterinary patient, which of the following positions should never be used for viewing the Bullae?

A)Lateral
B)Open mouth view
C)Dorsoventral
D)Oblique

Question 33

When calculating conventional radiograph settings, which of the following demonstrates the correct procedure for determining the change required when switching from a non-grid to a grid technique?

A)Increase MAS
B)Decrease MAS
C)Decrease KVP
D)Decrease MA only

Question 34

When reviewing the quality of a conventional radiograph, which of the following choices best explains what a "plus density artifact" is?

A)Diffuse areas of grey shading
B)The presence of unexplained darkening in certain areas
C)The presence of unexplained clearness in certain areas
D)Areas that contain circular white spots that are not related to anatomy

Question 35

Which of the following choices would represent an adequate place in which to store a personal dosimetry badge when it is not in use?

A)Clipped to the collar of a lead apron
B)Anywhere inside of the x-ray room
C)Clipped to the top of the thyroid shield
D)Anywhere outside of the x-ray room

Question 36

Radiation is measured in standardized units. What is the measurement for a standard unit of radiation called?

A)Radiation Standard Measure
B)X-ray Exposure Limit
C)Roentgen Equivalent Man
D)Electron Particle Measure

Question 37

When processing standard radiograph film, brown stains or fogging may occur if which of the following conditions are present?

A)Patient movement
B)Improper processor temperature
C)Inadequate technique
D)Oxidized developer

Question 38

In general, which of the following statements is true regarding the effect of kilovoltage peak (kVp) on radiographic film?

A)Lowering the KVP creates less overall less contrast and a long grey scale.
B)Medium kVp settings create high contrast and a short grey scale.
C)Raising the kVp creates low contrast and a long grey scale.
D)Raising the kVp creates high contrast and a short grey scale.

Question 39

When creating a technique chart for standard radiographic use, one change in the thickness of the part measured will result in how many changes to the kilovoltage peak(kVp) setting?

A)1 kVp
B)2 kVp
C)3 kVp
D)4 kVp

Question 40

When evaluating radiograph quality, what would be the most likely cause of a low contrast film, assuming that there is no problem with the developer's chemicals?

A)Low kVp
B)Time too short
C)High kVp
D)Time too long

Question 41

When radiographing a patient, what factor determines the kilovoltage peak (kVp) setting?

A)Desired amount of black and white to be produced
B)Desired magnification
C)The thickness of the part to be radiographed
D)The weight of the patient

Question 42

When considering the effects of radiograph machine settings, which of the following statements regarding milliamperage (MA)are TRUE?

A)It increases scatter radiation
B)It increases exposure rate
C)It magnifies the image
D)It has no effect on beam penetration

Question 43

When radiographing the veterinary patient, what is the general purpose of collimation of the x-ray beam?

A)It reduces the amount of secondary and scatter radiation that personnel are exposed to.
B)It focuses the beam to allow for accurate exposure of the part being radiographed.
C)It allows you to visualize that the area to be radiographed is within the beam.
D)All of the above

Question 44

In actual practice, how is milliampere seconds (MAS) calculated when producing conventional radiographs?

A)Multiply milliamperage by exposure time
B)Multiply kVp by milliamperage
C)Divide milliamperage by exposure time
D)Divide kVp by milliamperage

Question 45

Assuming that you want to change the density of a conventional radiograph (but not the contrast), which of the following settings would you alter?

A)Milliampere seconds (MAS)
B)Kilovoltage Peak (KVP)
C)Speed (time)
D)Both A and C

Question 46

Which of the following choices represent the function of contrast in a conventional radiological image?

A)To produce an overall darkening of the image
B)To make overall detail more visible
C)To produce an overall lightening of the image
D)To make bones more visible

Question 47

Conventional radiology film cassettes contain intensifying screens. What is the function of the intensifying screen?

A)To secure the film inside of the cassette
B)To increase contrast
C)To identify the radiograph
D)To keep the film from developing artifacts

Question 48

When considering the use of ultrasound in diagnostic imaging, what type of anatomy is preferred for viewing with an ultrasound machine?

A)Dense long bones
B)Fluid filled organs, such as the liver
C)Air filled organs, such as the lungs
D)Any type of anatomy

Question 49

When producing ultrasonic images for study, which part of the machine functions to emit sound and detect the retuning echoes in order to create a picture?

A)The anode
B)The cathode
C)The transducer
D)The tube

Question 50

Ultrasound technology utilizes the use of a specific type of wave to create diagnostic images. What type of wave does an ultrasound emit?

A)Radio
B)Radiation
C)Microwave
D)Sound

Question 51

Which of the following diagnostic radiology systems allow the ability to apply a high level of enhancement and manipulation to a captured image?

A)Digital (DR) systems
B)Conventional x-ray systems
C)Computed (CR) systems
D)Computed topography

Question 52

When using a computed radiology system for creating diagnostic pictures, how is the x-ray image captured prior to being converted to a digital format?

A)Using an image plate
B)Using a cassette-intensifying screen
C)Using a digital converting device
D)Using a digital reader