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Mocks Flashcards

1
Q

Which processing fault is most likely to have occurred if a if a radiograph film is too pale?

A

Developing time was too short

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2
Q

Who should collect the containers for safe disposal of radiographic developer?

A

A registered chemical waste collector

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3
Q

What is emitted by intensifying screens when radiated?

A

Light

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4
Q

The main purpose of a quality assurance programme for dental radiographs is to

A

Reduce retakes

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5
Q

For grade 3 radiographs the maximum percentage for quality assurance is…

A

10%

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6
Q

Which is the most appropriate radiograph to show widespread interdental bone loss?

A

Dental Pantomograph

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7
Q

What must a radiation supervisor ensure that all staff do?

A

Read the local rules

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8
Q

Which process has not been carried out correctly if a radiograph deteriorates over a period of time?

A

Storing

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9
Q

What is recommended with IRMER to reduce the number of X-ray retakes?

A

Quality assurance audits

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10
Q

Developer solution contains?

A

Alkali

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11
Q

What should a dental nurse say if a patient asks about the safety of X-rays?

A

The risk is low

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12
Q

What is the purpose of intensifying screens within a cassette?

A

Emitting light when sensitised by X-rays

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13
Q

Which X-ray is likely to detect caries on posterior teeth?

A

Bitewing.

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14
Q

Fixer solution contains?

A

Acid

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15
Q

What is the role of the radiation Protection supervisor?

A

To ensure compliance with local rules

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16
Q

X-ray chemicals should be stored…

A

On a low shelf in a cool dry cupboard

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17
Q

Which is the most appropriate radiograph to show interdental caries on posterior teeth?

A

Bitewing

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18
Q

What is a disadvantage of using direct digital radiography?

A

Sensors are bulky and rigid

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19
Q

White crystalline marks on a radiograph indicate insufficient…

A

Washing after fixer

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20
Q

Unexposed extra oral films are best stored in the

A

Dark room

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21
Q

Where should X-ray films be stored?

A

Cool dry cupboard

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22
Q

E/F film speed is recommended to

A

Reduce exposure time

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23
Q

Where should digital images be stored?

A

On a computer

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24
Q

In an X-ray audit what does a grade 2 mean?

A

The image is diagnostically acceptable.

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25
Which process has not been carried out correctly if an X-ray film deteriorates over a period of time?
Storing
26
When mounting an X-ray film the pimple should be
Facing towards you
27
Which one of the following is an example of an extra oral radiograph?
DTP
28
Radiographs are used as part of treatment planning for...
Endodontics
29
What do the initials IR(ME)R stand for?
Ionising Radiation (Medical Exposure) regulations.
30
To handle X-ray chemicals, a dental nurse should...
Check the manufactures instructions for dilution
31
A radiograph which appears too dark has been
Over exposed
32
Where should the pimple be placed when mounting an X-ray film?
Facing towards the operator
33
A risk assessment, including action in the event of malfunction of the X-ray equipment is required by
The ionising radiation medical exposure regulations 2000 (IRMER)
34
What can a dental nurse perform, following documented in house training?
Press the exposure button
35
What can the result of mounting radiographs incorrectly be?
Wrong treatment
36
What is the first action to take of equipment fails?
Disconnect the equipment
37
Developer and fixer come under the heading of
Hazardous waste
38
What may be the cause of fogging on an X-ray film?
Expired film
39
What is the correct final stage in the manual processing of exposed X-ray film?
Wash in running water for 20 minutes.
40
The use of a quality assurance system has to achieve all except which of the following?
Keep costs to a minimum.
41
What can the incorrect mounting of an X-ray film result in?
Wrong treatment
42
A radiograph may appear blank if it is?
Not exposed to radiation
43
A Bitewing is mainly used to detect what?
Interproximal caries
44
Which of the following deposits are found in the bottom of the developing tank
Silver
45
X-ray chemicals should be disposed of safely by
Pouring them into a waste container
46
Digital phosphor plates are processed by
Scanning with a laser beam
47
A radiation Protection supervisor is appointed...
To ensure compliance with IRR 1999 and local rules.
48
White crystalline marks on a radiograph indicate what?
Poor washing after fixing.
49
Where should paper towels used to clean up a chemical spillage be disposed of
Hazardous waste bin
50
Which one of the following chemicals is found inside an intensifying screen?
Calcium Tungstate.
51
What is a horizontal Bitewing radiograph commonly used to detect?
Interproximal caries
52
A lid should always cover the developing tank to reduce what?
Oxidisation
53
Which one of the following, on completion of an X-ray audit, is the recommended level for a grade 1 radiograph?
At least 70%
54
Which is the best view to detect a fractured neck of condyle?
Dental Pantomograph
55
A teenagers upper canine teeth have not yet erupted. Which one of the following types of radiograph is most likely to be used in order to locate these teeth?
Occlusal
56
What can rotating stocks of X-ray films prevent
Fogging
57
How would an X-ray film appear if it had been exposed to light before processing
Black
58
The ideal temperature for manually developing radiograph is
18-22
59
What are safelights used to protect the image from?
Daylight
60
Local rules are
A practices guidelines to the safe use of radiation
61
What is the ideal time and temperature for developing radiographs?
20oC for 5 minutes.
62
Which is the safest way to handle processing chemicals when replenishing an automatic processor?
Use a funnel to fill the tanks
63
What actions should be taken when dealing with a spillage of processing chemicals?
Put on PPE and ventilate the area
64
Foreshortening of an image on a radiograph can be caused by
Incorrect cone positioning
65
Why are stocks of X-ray films rotates? To ensure...
Films do not go out of date
66
Developer and fixer come under the heading of...
Hazardous waste
67
For grade 1 radiographs the recommended percentage for quality assurance is?
70%
68
A radiation safety assessment of the X-ray machine and equipment is recommended by a competent every...
3 years
69
Which is the most appropriate way to store digital images?
Computer
70
If a radiograph has been exposed to light it would appear
Black
71
What is the missing word? Ionising Radiation ( .... Exposure) regulations.
Medical
72
An out of date X-ray film will result in what?
Deterioration of the image
73
Rotating stocks of X-ray films help prevent
Fogging
74
A patient attends for the first stage of endodontic treatment on the upper left central incisor. What radiograph is the nose appropriate at this stage?
Periapical
75
X-ray chemicals should be stored on a...
Low shelf in a cool dry cupboard
76
Intensifying screens are used in which radiographic technique?
Extra oral
77
What is used as an indicator to accurately mount periapical films?
The anatomy of the teeth
78
Who can carry out the role of radiation protection advisor
Radiation physicist
79
Which is a disadvantage of using digital radiography?
Expensive to purchase
80
On completion of an X-ray audit, what is recommended for a grade 3 radiograph?
At least 10%
81
Why should radiographs be quality assured?
To meet IRMER requirements
82
In X-ray film processing, a step wedge is used to?
Check the quality of the processing chemicals
83
What is the first action to take if equipment fails?
Disconnect the equipment
84
Which one of the following is an example of an intra oral radiograph
Occlusal
85
Which of the following may be an advantage of using digital radiography?
Decreased dosage to patients
86
Why should radiographs be quality assured?
To meet IRMER requirements
87
When mounting an X-ray film the pimple should be...
Facing towards you
88
The use of a safe light in the radiograph processing room prevent the radiograph being?
Handling fault
89
Who formulates contingency plans for the malfunction of X-ray equipment?
Radiation Protection supervisor
90
X-rays are hazardous because they
Can cause genetic change
91
Processed X-ray films that are too pale could be caused by deficiencies in
The developer
92
When processing films manually it is necessary to
Use the safe light
93
What is the recommended temperature and time for manual developing?
20oC for 5 mins
94
Safelights are used because films are light sensitive until they are...
Fixed
95
To avoid pressure artefacts on the extra oral films, they should be stored how?
In an upright position
96
Which provision is a requirement of the IRMER 2000?
Controlled area
97
Radiation guidelines state that in a dental profession lead aprons should...
Not be worn at all
98
Why is it important to ensure the principles of ALARP are adhered to?
To restrict dosage
99
A lateral Oblique X-ray is...
Extra oral X-ray.
100
Digital phosphor plates are processed
By scanning with a laser beam

Radiography (2 decks)

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