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X-ray class > Test 1 > Flashcards

Test 1 Flashcards

1
Q

In the routine AP view of the shoulder, the hand is placed so that:

a) the palm faces the x-ray tube
b) the dorsal surface off the hand faces the x-ray tube
c) the palm faces and is against the side of the body
d) the hand is in the baby-arm position, above the shoulder

A

a) palm faces the x-ray tube

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2
Q 
Which of the following factors is essential in the regulation of radiographic density?
A) MA
B) Time
C) kVp
D) a and b
A

d) a and b

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3
Q 
Changing the target to film distance from 44" to 40" would result in:
A) decreased magnification
B) increased magnification
C) decreased detail
D) decreased contrast
A

A) decreased magnification

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4
Q

A film which is black and also has greenish-yellow colors on it:
A) hasnt been fixed properly
B) hasnt been developed properly
C) hasnt been washed properly
D) has been in the fixer too long a period of time

A

C) hasnt been washed properly

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5
Q 
The accelerator function in the developer is to:
A) protect the film from fog
B) accelerate the fixing solution
C) speed up the developing process
D) prolong the life of the developer
A

C) speed up the developing process

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6
Q

The processing of the x-ray film by inspection is a/an:
A) exact method to produce good radiographs
B) inaccurate method that produces varying results
C) faster approach
D) widely accepted method

A

B) inaccurate method that produces varying results

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7
Q 
Holding back the developing action without preventing development of the unexposed silver bromide crystals on the film is performed by the:
A) restrainer
B) accelerator
C) preservative
D) stop bath
A

A) restrainer

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8
Q

What does SID stand for?

A

Source image distance

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9
Q

What does FFD stand for?

A

Focal film distance

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10
Q

What does TFD stand for

A

Target film distance

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11
Q

Moving the tube farther from the patient:
A) increased penumbra
B) improves the detail
C) increased magnification of the image
D) makes the part radiographed appear larger than actual size

A

B) improves the detail

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12
Q 
Which of the following is the reducing agent which changes affected silver salts to metallic silver?
A) fixer
B) developer
C) sodium sulive
D) acetic acid and water
A

B) developer

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13
Q 
Chrome alum is added to the fixer to:
A) protect the emulsion from scratches
B) dissolve unexposed silver crystals
C) ionize the emulsion
D) restrain the action of hypo
A

A) protect the emulsion from scratches

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14
Q

Which of the following is NOT a purpose of fixation?
A) remove unexposed and undeveloped silver crystals
B) preserve the image
C) harden the emulsion
D) convert the image

A

D) convert the image

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15
Q 
A prudent question to ask patients who are about to be x-rayed might be:
A) when was your last meal?
B) are you possibly pregnant?
C) are you lactating?
D) have you gained weight recently
A

B) are you possibly pregnant?

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16
Q

A densitometer does what?
A) uniformly exposes a test film in the same manner each time
B) measures the degree of exposure on a film
C) is used to measure the output of the x-ray machine
D) i sused to calibrate new technique charts

A

B) Measures the degree of exposure on a film

17
Q 
Which of the following focal spots will produce the greatest detail on any given radiograph?
A) 3mm
B) 1mm
C) 2.5mm
D) 2mm
A

B) 1mm. (Pick the smallest one if you are wanting the finest detail)

18
Q

The main purpose of the developer is to:
A) harden the film to protect from scratches
B) remove unexposed silver bromide crystals from the film
C) remove exposed silver bromide crystals from the film
D) turn exposed silver bromide crystals black

A

D) turn exposed silver bromide crystals black

19
Q 
The most active of the developing agents is:
A) hydroquinone
B) sodium carbonate
C) potassium bromide
D) elon
A

D) elon

20
Q 
The effect of hydroquinone produces an image of:
A) rich dense tones
B) very fine detail
C) suitable contrast
D)minimal distortion
A

C) suitable contrast

21
Q

The basic constituents in a developer are:
A) sulfuric acid, sodium carbonate, and potassium
B) accelerator, preservative, developing agents
C) sodium chloride, sodium hydroxide, restrainers
D) chrome alum, hyposulfite, and bromine

A

B) accelerator, preservative, developing agents

22
Q 
To provide adequate fixation, the normal maximum fixing time is about:
A) 1-4 mins
B) 5-6 mins
C) 8-10 mins
D) 20 mins
A

C) 8-10 mins

23
Q 
A useful device in a film processing tank is a:
A) timer
B) thermometer
C) step wedge
D) victoreen meter
A

B) thermometer

24
Q

Which of the following chemicals inhibits fogging of lighter areas without interfering with the development of the image?

a) potassium bromide
b) potassium alum
c) hydroquinone
d) sodium carbonate

A

a) potassium bromide

25
Q 
The unexposed sivler crystals are:
A) reduced by the developing agent
B) oxidized by the accelerator
C) washed away by the developer
D) unaffected by the developer
A

D) unaffected by the developer

26
Q

Which of the following best describes the 15% rule?

a) an increased of 15% in mAs requires a decrease to 1/2 kVp
b) an increase of 15% in kVp requires a decrease to 1/2 mAs
c) an increase of 15% in distance requires a decrease to 1/2 mAs
d) an increase of 15% in distance requires a decrease to 1/2 kVp

A

B) an increase of 15% in kVp requires a decrease to 1/2 mAs

27
Q

Total filtration is:
A) 2mm of added filtration and 1mm of inherent filtration
B) .5mm of added filtration and 2mm of inherent filtration
C) 1mm of added filtration and 1mm of inherent filtration
D) 2mm of added filtration and .5mm of inherent filtration

A

D) 2mm of added filtration and .5mm of inherent filtration

28
Q 
If an unexposed piece of x-ray film were placed in the fixer for 10 min the following would occur:
A) Ag BR would be removed
B) the film would turn black
C) the film would remain green
D) the film would turn gray
A

A) Ag BR would be removed

29
Q 
What is the minimum distance the safe light should be from the film?
A) 12"
B) 24"
C) 36"
D) 55"
A

C) 36”

30
Q 
A type of radiation which has been deflected from its original path is:
A) scattered radiation
B) primary radiation
C) leakage radiation
D) braking radiation
A

A) scattered radiation

31
Q

Which of the following techniques will assist in reducing motion unsharpness?
A) use of shortest possible exposure time
B) use of a large target to film distance
C) use of a small object to film distance
D) all of the above

A

A) use of shortest possible exposure time

32
Q

Agitation upon immersion of the film in the developer:
A) has no effect on development
B) produces uniform development
C) will increase temperature of deeveloper
D) produces streaks on the film

A

B) produces uniform development

33
Q 
Sodium thiosulfate is known as the :
A) restrainer
B) reducer
C) accelerator
D) hypo
A

D) hypo

34
Q 
The hardener in the fiing solution is:
A) acetic acid
B) sodium carbonate
C) chrome alum
D) potassium hydroxide
A

C) chrome alum

35
Q

The essential ingredients of the fixer are:
A) preservative, reducer, hardener, and acid
B) acid, hardener, hypo, preservative
C) tanning agent, accelerator, reducer, preservative
D) alkali, preservative, reducer, restrainer

A

B) acid, hardener, hypo, preservative

36
Q

Which of the following is the best definition of a grid ratio?
A) the ratio of the height to the width of the lead strips
B) the ratio of the width to the height of the lead strips
C) the ratio of the height to the space between the lead strips
D) the ratio of the weight of the lines per inch of the grid

A

C) the ratio of the height to the space between the lead strips

37
Q 
What term is used to describe the negative pole of the x-ray tube?
A) anion
B) cathion
c) anode
D) cathode
A

D) cathode

38
Q 
Which of the following will increase when the object-film distance is increased?
A) magnification
B) patient exposure dose
C) radiographic density
D) radiographic contrast
A

A) magnification

X-ray class (1 decks)

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