Brainscape's Knowledge GenomeTM

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


See full index

National Board > Radiology > Flashcards

Radiology Flashcards

1
Q

tiny particles of matter that Possess Mass and travel in straight lines at high speeds

A

Particulate radiation

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

wave-like energy Without Mass through space or matter

A

Electromagnetic radiation

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

electromagnetic ionizing radiation of Very Short Wavelength from tungsten by highly accelerated electrons

A

X-ray

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

speed of a wave

A

velocity

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

crest to crest of waves

A

wavelengths

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

number of wavelengths within an amount of time

A

frequency

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

Negative charge - tungsten filament and molybdenum cup

A

Cathode

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

Positive charge - copper arm and focal spot

A

Anode

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

SPEED of electrons when traveling from cathode to anode - determines PENETRATION of X-ray beam

A

kVp - kilovoltage peak

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

overall darkness or blackness of a film

A

density

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

Decreased kVp film exhibits Decreased density and appears

A

Lighter

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

Increased kVp, Increased density, Increased mA - film appears

A

Darker

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

how sharply dark and light areas appear, RANGE OF SHADES

A

contrast

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

HIGH contrast & density - ___kVp - ___shades - ___ scale

A

HIGH contrast & density - LOW kVp - FEW shades - SHORT scale

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

LOW contrast & density - ___kVp - ___shades - ___ scale

A

LOW contrast & density - HIGH kVp - MANY shades - LONG scale

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

NUMBER of electrons when traveling from cathode to anode - determines PRODUCTION of X-rays

A

mA - milliamperage

17
Q

how many impulses of radiation are produced per second

A

60 impulses/second

18
Q

the most common mechanism of damage in humans

A

ionization of water

19
Q

intensity of radiation is inversely proportional to the square of the distance

A

inverse square law

20
Q

effects seen in person irradiated - not passed on to future generations

A

somatic

21
Q

effects not seen in person irradiated - passed on to future generations

A

genetic

22
Q

Cell sensitivity - reproductive tissue, bone marrow, mucous membranes, lymph system, intestines

A

HIGH

23
Q

Cell sensitivity - lungs, kidneys, liver, growing bone & cartilage, salivary glands, fine vasculature

A

Medium

24
Q

Cell sensitivity - nerve tissue, heart, skeletal muscle, mature bone, optic lens

A

low

25
Q

SI unit - dose & Rad

A

Gy - Gray

26
Q

SI unit - dose equivalent & Rem

A

Sv -Sievert

27
Q

SI unit - exposure in air, Roentgen

A

C/kg - Coulomb/kg

28
Q

xray machine = or < 70 kVp requires minimum of ___mm aluminum filtration

A

= or < 70 kVp = 1.5 mm flitration

29
Q

xray machine >70 kVp requires minimum of ___mm aluminum filtration

A

> 70 kVp = 2.5 mm flitration

30
Q

Lead Apron absorbs __% of scatter radiation and is usually __mm

A

90% and 0.25mm

31
Q

reduces surface area exposed by use of Lead Diaphragm; beam size at face can be no larger than ___ inches

A

Collimation; 2.75 inches

32
Q

MPD - Max Permissible Dose for occupational: __rem/year, __Sv/year (__mSv)

A

5 rem/year, 0.05 Sv/year (50 mSv)

33
Q

hydroquinone and elon; 5 minutes 68 degrees; changes exposed crystals black

A

developer

34
Q

sodium thiosulfate and ammonium thiosulfate; 10 minutes; removes unexposed crystals and clears

A

fixer

35
Q

Processing steps (5)

A

develop, water, fixer, water, dry

36
Q

safelighting in darkroom - bulb wattage, distance from film, filter

A

7.5 or 15 watts, 4 feet, GBX-2 filter

37
Q

SLOB

A

Same Lingual, Opposite Buccal

38
Q

cone length increases = dose decreases by factor of 4

A

8” @ 1sec

16” @ 4sec

39
Q

mA decreases, impulses increase, kVp same,

A

15mA, 90kVp, 8imp

10mA, 90kVp, 12imp

National Board (7 decks)

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