Radiography Flashcards

(40 cards)

1
Q

State 3 points that must be contained in the local rules

A

Name of appointed RPS
Description of controlled area
Arrangements for pregnant staff

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

What do the letters IRMER stand for?

A

Ionising radiation medical exposure regulations

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

What do the letters ALARP stand for?

A

As Low As Reasonably Practicable

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

List 2 ways you implement ALARP in the practice ?

A

Use a rectangular collinator

Use fastest speed of film

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

Give 2 ways of ensuring the safe use of any X-ray equipment in practice?

A

Turn off after each exposure

Engineer checks every 3 years

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

Lost 2 procedures that can be taken to ensure xrays are of good quality

A

Use film holders
Step wedge
Clinical audit

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

List 4 precautions that could be taken to ensure radiation is used safely in practice

A

Use a collinator
Wear dose meters
1.5-2m away from beam
Ensure All staff are qualified to take xrays

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

When should radiation machines be switched off?

A

After each exposure

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

A fast film will mean reduced exposure time? True or false

A

True

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

Main role of the RPS in practice?

A

Carry out radiation risk assessment

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

State 2 pieces of information you’d expect to see in a radiation protection file

A

Copy of radiography risk assessment
Copy of staff qualifications
Local rules

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

State 2 reasons why it is important to have quality assurance programme

A

Avoid needing re take films

Keep staff and patients safe

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

Radiation monitoring badges must be worn when more than Intra oral films are taken weekly ?

A

100

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

Radiation monitoring badges must be worn when more than Extra oral films are taken weekly?

A

50

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

State 2 adverse risks to health dental radiography can have on human body?

A

Damages sensitive tissues

Damage to unborn child

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

Give 2 reasons why it is important to maintain accurate and up to date records of X-ray film expiry dates

A

To avoid using an out of date film

To use oldest stock first

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

State 2 things an OPG radiograph would usually be taken to show?

A

Impacted third molars

Un erupted teeth for ortho

18
Q

Briefly describe the image you would see on a bitewing

A

Crowns of upper and lower pre molars and molars on one side

19
Q

State 3 things a bite wing would usually be taken to show?

A

Detect caries
Early bone loss
Overhanging restorations

20
Q

State 2 things a periapical radiography would show

A

Working root length

Bone loss

21
Q

Describe the image you would see on an anterior occlusal film

A

Teeth in upper arch or teeth in lower arch

22
Q

What is a step wedge used for

A

With a test film to check quality

23
Q

Describe how intensifying screens reduce patient exposure to xrays

A

When hit by radiation the intensifying screen glows which produces the image quicker

24
Q

Controlled area?

A

1.5-2m patient only zone for radiographs

25
What further info should be recorded in pt notes after date operator standard setting and justification
Grade of film Type of film Outcome of film
26
State 3 hazards of handling the processing chemicals used in dental radiography
Risk of inhalation Risk of skin contact Risk of spillage
27
How should spent fixer be disposed of?
Red stream special waste
28
What is the correct sequence of events when manually developing a radiograph
Developer, Wash, Fixer, Wash
29
What is the function of lead foil in an X-ray film packet?
Absorbs xrays stops xrays travelling
30
What is the function of the black paper in an X-ray film packet?
Prevents light leakage
31
What is the correct order of layers in an intra oral X-ray film packet?
Paper, film, paper, lead foil
32
What is used to capture the image in digital radiography instead of a film
Direct digital sensor | Phospur storage plate
33
Grade 1?
Excellent diagnostic quality Quality target 70% of films No errors in exposure
34
Grade 2?
Acceptable diagnostic quality Quality target 20% of films Some errors in exposure positioning or processing
35
Grade 3?
Unacceptable diagnostic quality Target quality 10% of films Errors in exposure
36
Digital radiography advantages and disadvantages
Lower dose of radiation No hazardous chemicals needed Can enhance image Expensive Image may be manipulated in error
37
Fogging of X-ray?
Light leakage
38
Blurred X-ray?
Patient moved
39
Brown green discolouration
Under fixed
40
Excessive film bending
Poor handling