Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Vet tech > Radiology pt. 1 & 2 > Flashcards

Radiology pt. 1 & 2 Flashcards

1
Q

This mostly affects the contrast between structures on a radiograph

A

kVp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Secondary x-rays that bounce off the patient or do not reach the film

A

scatter radiation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

The element used for the filament and target in an x-ray tube

A

Tungsten

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

This is used to measure the area to be radiographed, determines the kVp setting

A

Caliper

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

The negative end of the x-ray tube where electrons are produced

A

Cathode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Responsible for the quantity of the electrons produced (density)

A

mA

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Lead strips placed between the x-ray table and film to help reduce scatter radiation

A

Grid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

The positive side of teh x-ray tube

A

anode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Used to describe the degree of darkness or blackness on a radiograph

A

Density

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Responsible for the power, quality, or energy of the electrons (contrast)

A

kVp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

The lining on the inside of the cassettes that emit light when hit with x-rays

A

Intensifying screens

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Described as the difference in neighboring structures, or the different shades of gray

A

Contrast

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Most Dense

A

Metal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Least dense

A

Gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What will appear “more white” on a radiograph
Bone
Fat
Gas
Tissue

A

Gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

First radiographic image was created by?

A

Wilhelm Rontgen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When obtaining a radiograph, the thickest part of the area of interest is placed towards what side?

A

The cathode end of the x-ray tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Which of the following kV will produce less scatter radiation and secondary radiation?
50 kV
90 kV
110 kV
75 kV

A

50 kV

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

All of the following are components of the x-ray tube

A

Cathode
Anode
Tungsten filament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The thickest part of the patient, when obtaining an x-ray should be closest to what?

A

Cathode

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Type of tissue what absorbs the most radiation

A

bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

The loss of intensity of the x-ray beam on the anode side is due to the _____ effect

A

heel

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

The degree of blackness on a radiograph is described as:

A

Radiographic density

24
Q

For what are grids used on an x-ray machine

A

To decrease scatter radiation

25
Q

What does the milliamperage (mA) control on the x-ray machine

A

The amount of radiation that is produced
The current to the cathode

26
Q

X-rays were discovered in 1895 by?

A

Wilhelm Rontgen

27
Q

Considered to be a cardinal rule for radiation protection

A

Distance, time, shielding

28
Q

This type of anode is found in regular x-ray units

A

Rotating

29
Q

Contains filament consisting of a tightly coiled tungsten wire and is the site of electron generation in the x-ray tube?

A

Cathode

30
Q

Which will appear the whitest on a finished radiograph?
Bone
Fat
Gas
Metal

A

Metal

31
Q

A grid is a series of thin, linear strips made of alternating radiodense and radiolucent material. Of what are the radiodense strips made of?

A

Lead

32
Q

Decreased radiographic density with poor contrast results from?

A

The film being underexposed

33
Q

What does SID stand for in radiology

A

Source Image Distance

34
Q

An image intensifying ______ exposes x-ray film using light from crystals that fluoresce.

A

Screen

35
Q

Where is the grid located in reference to an x-ray machine

A

Between the patient and the cassette

36
Q

What does it mean to collimate the x-ray beam?

A

To limit the beam exposure just to the area of interest within the film.

37
Q

mAs equals:

A

mA x time

38
Q

When we collimate the radiograph beam, what is the measurement?

A

Centimeters

39
Q

Who should never be the radiology tech?

A

Pregnant person
Anyone under 18

40
Q

What is the most common organ injured from radiation

A

thyroid

41
Q

What should you be wearing when taking a radiograph

A

Lead gown, lead gloves, docemeter

42
Q

when a taking a radiograph, it is best to have the patient awake and alert even if you need extra people in the room?

A

False. Keep only one or 2 people in the room with the patient sedated

43
Q

If you are radiographing the distal phalanges, what are you radiographing?

A

The toes

44
Q

There are 2 things in the cathode side of the radiology tube that produce electrons. What are they?

A

Filament
Focusing cup

45
Q

What does kVp control?

A

Contrast

46
Q

A small focal spot creates a ______ quality image

A

higher

47
Q

More mA = more heat = more electrons = more x-rays produced = increased quantity of the x-ray beam

A

True

48
Q

Higher mA settings allow use of shorter exposure times but still produce the same number of x-rays. Why is this important?

A

Limiting the amount of radiation we are exposed to

49
Q

Higher kVp settings = electrons moving faster to anode = increased peretrating power of x-ray towards the patient/film

A

true

50
Q

What is the formula for Sante’s rule?

A

Centimeters x 2 + SID = kVp

51
Q

More x-rays reaching the film means the film is ______

A

Darker

52
Q

Most poor radiographs are a result of using the wrong exposure factors

A

True

53
Q

If kVp is too ____, the finished radiograph looks grayish and the structure being examined will not be definite

A

low

54
Q

How to develop a film

A

Developer
Rinse bath
Fixer
Rinse
Dry

55
Q

How many sieverts = 100 rem?

A

1

56
Q

Lead gloves, aprons, and thyroid shields are how thick?

A

0.5mm

57
Q

The three safety rules for radiology are _______, _______, and _________.

A

Time, distance, and shielding

Vet tech (26 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions