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Radiography > Mocks > Flashcards

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
Q

Which process has not been carried out correctly if an X-ray film deteriorates over a period of time?

A

Storing

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26
Q

When mounting an X-ray film the pimple should be

A

Facing towards you

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27
Q

Which one of the following is an example of an extra oral radiograph?

A

DTP

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28
Q

Radiographs are used as part of treatment planning for…

A

Endodontics

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29
Q

What do the initials IR(ME)R stand for?

A

Ionising Radiation (Medical Exposure) regulations.

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30
Q

To handle X-ray chemicals, a dental nurse should…

A

Check the manufactures instructions for dilution

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31
Q

A radiograph which appears too dark has been

A

Over exposed

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32
Q

Where should the pimple be placed when mounting an X-ray film?

A

Facing towards the operator

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33
Q

A risk assessment, including action in the event of malfunction of the X-ray equipment is required by

A

The ionising radiation medical exposure regulations 2000 (IRMER)

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34
Q

What can a dental nurse perform, following documented in house training?

A

Press the exposure button

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35
Q

What can the result of mounting radiographs incorrectly be?

A

Wrong treatment

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36
Q

What is the first action to take of equipment fails?

A

Disconnect the equipment

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37
Q

Developer and fixer come under the heading of

A

Hazardous waste

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38
Q

What may be the cause of fogging on an X-ray film?

A

Expired film

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39
Q

What is the correct final stage in the manual processing of exposed X-ray film?

A

Wash in running water for 20 minutes.

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40
Q

The use of a quality assurance system has to achieve all except which of the following?

A

Keep costs to a minimum.

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41
Q

What can the incorrect mounting of an X-ray film result in?

A

Wrong treatment

42
Q

A radiograph may appear blank if it is?

A

Not exposed to radiation

43
Q

A Bitewing is mainly used to detect what?

A

Interproximal caries

44
Q

Which of the following deposits are found in the bottom of the developing tank

A

Silver

45
Q

X-ray chemicals should be disposed of safely by

A

Pouring them into a waste container

46
Q

Digital phosphor plates are processed by

A

Scanning with a laser beam

47
Q

A radiation Protection supervisor is appointed…

A

To ensure compliance with IRR 1999 and local rules.

48
Q

White crystalline marks on a radiograph indicate what?

A

Poor washing after fixing.

49
Q

Where should paper towels used to clean up a chemical spillage be disposed of

A

Hazardous waste bin

50
Q

Which one of the following chemicals is found inside an intensifying screen?

A

Calcium Tungstate.

51
Q

What is a horizontal Bitewing radiograph commonly used to detect?

A

Interproximal caries

52
Q

A lid should always cover the developing tank to reduce what?

A

Oxidisation

53
Q

Which one of the following, on completion of an X-ray audit, is the recommended level for a grade 1 radiograph?

A

At least 70%

54
Q

Which is the best view to detect a fractured neck of condyle?

A

Dental Pantomograph

55
Q

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?

A

Occlusal

56
Q

What can rotating stocks of X-ray films prevent

A

Fogging

57
Q

How would an X-ray film appear if it had been exposed to light before processing

A

Black

58
Q

The ideal temperature for manually developing radiograph is

A

18-22

59
Q

What are safelights used to protect the image from?

A

Daylight

60
Q

Local rules are

A

A practices guidelines to the safe use of radiation

61
Q

What is the ideal time and temperature for developing radiographs?

A

20oC for 5 minutes.

62
Q

Which is the safest way to handle processing chemicals when replenishing an automatic processor?

A

Use a funnel to fill the tanks

63
Q

What actions should be taken when dealing with a spillage of processing chemicals?

A

Put on PPE and ventilate the area

64
Q

Foreshortening of an image on a radiograph can be caused by

A

Incorrect cone positioning

65
Q

Why are stocks of X-ray films rotates? To ensure…

A

Films do not go out of date

66
Q

Developer and fixer come under the heading of…

A

Hazardous waste

67
Q

For grade 1 radiographs the recommended percentage for quality assurance is?

A

70%

68
Q

A radiation safety assessment of the X-ray machine and equipment is recommended by a competent every…

A

3 years

69
Q

Which is the most appropriate way to store digital images?

A

Computer

70
Q

If a radiograph has been exposed to light it would appear

A

Black

71
Q

What is the missing word?

Ionising Radiation ( …. Exposure) regulations.

A

Medical

72
Q

An out of date X-ray film will result in what?

A

Deterioration of the image

73
Q

Rotating stocks of X-ray films help prevent

A

Fogging

74
Q

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?

A

Periapical

75
Q

X-ray chemicals should be stored on a…

A

Low shelf in a cool dry cupboard

76
Q

Intensifying screens are used in which radiographic technique?

A

Extra oral

77
Q

What is used as an indicator to accurately mount periapical films?

A

The anatomy of the teeth

78
Q

Who can carry out the role of radiation protection advisor

A

Radiation physicist

79
Q

Which is a disadvantage of using digital radiography?

A

Expensive to purchase

80
Q

On completion of an X-ray audit, what is recommended for a grade 3 radiograph?

A

At least 10%

81
Q

Why should radiographs be quality assured?

A

To meet IRMER requirements

82
Q

In X-ray film processing, a step wedge is used to?

A

Check the quality of the processing chemicals

83
Q

What is the first action to take if equipment fails?

A

Disconnect the equipment

84
Q

Which one of the following is an example of an intra oral radiograph

A

Occlusal

85
Q

Which of the following may be an advantage of using digital radiography?

A

Decreased dosage to patients

86
Q

Why should radiographs be quality assured?

A

To meet IRMER requirements

87
Q

When mounting an X-ray film the pimple should be…

A

Facing towards you

88
Q

The use of a safe light in the radiograph processing room prevent the radiograph being?

A

Handling fault

89
Q

Who formulates contingency plans for the malfunction of X-ray equipment?

A

Radiation Protection supervisor

90
Q

X-rays are hazardous because they

A

Can cause genetic change

91
Q

Processed X-ray films that are too pale could be caused by deficiencies in

A

The developer

92
Q

When processing films manually it is necessary to

A

Use the safe light

93
Q

What is the recommended temperature and time for manual developing?

A

20oC for 5 mins

94
Q

Safelights are used because films are light sensitive until they are…

A

Fixed

95
Q

To avoid pressure artefacts on the extra oral films, they should be stored how?

A

In an upright position

96
Q

Which provision is a requirement of the IRMER 2000?

A

Controlled area

97
Q

Radiation guidelines state that in a dental profession lead aprons should…

A

Not be worn at all

98
Q

Why is it important to ensure the principles of ALARP are adhered to?

A

To restrict dosage

99
Q

A lateral Oblique X-ray is…

A

Extra oral X-ray.

100
Q

Digital phosphor plates are processed

A

By scanning with a laser beam

Radiography (2 decks)

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