Revision Flashcards

1
Q

Who discovered x-rays?

A

Wilhelm Conrad Roentgen

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2
Q

What year were x-rays discovered?

A

1895

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3
Q

Name the law that gives us the safe distance from a source of x-rays

A

Inverse square law

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4
Q

What does the photoelectric effect do?

A

The emission of electrons when light shines on a material

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5
Q

What does IR(ME)R 2000 stand for?

A

Ionising radiation (medical exposure) regulations 2000

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6
Q

what does IRR 2017 stand for?

A

Ionising radiation regulations 2017

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7
Q

How does IRMER 2017 differ from IRR 2017?

A

IRMER 2017 deals with exposure to patients for medical and non-medical procedures, whereas IRR 2017 deals with exposure to employees and the public

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8
Q

What does RPA stand for? And what do they do?

A

Radiation protection advisor, is an individual or body that advises on compliance with the IRRs

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9
Q

What does RPS stand for? And what do they do?

A

Radiation protection supervisor, a person/s appointed for the purpose of securing compliance with the IRRs in respect to work carried out in an area which is subject to local rules

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10
Q

Name the 4 designated roles under IR(ME)R 2017

A

Employer
Referrer
Practitioner
Operator

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11
Q

Which designated role in IRMER deals with legalities of taking x-rays?

A

Employer

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12
Q

What is the designated role of the practitioner under IRMER 2017?

A

Justifies the exposure

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13
Q

Who is the “operator” according to IRMER 2017?

A

Any person involved in the “practical aspects” of the production of a radiograph.

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14
Q

what are local rules?

A

Written rules pertaining to controlled areas where the appropriate procedures are to be followed and responses to incidents or accidents involving ionising radiation.

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15
Q

What does MPE stand for?

A

Medical Physics Expert

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16
Q

what is the role of an MPE?

A

Responsible for carrying out dose audits to ensure that dose optimisation and risk education is being correctly achieved

17
Q

What is the duty of the employer regarding selection criteria for radiographs?

A

Shall establish recommendations concerning referral criteria

18
Q

What are the three main advantages of using the paralleling technique for intra-oral radiographs?

A

Allows accurate geometry of image
Rectangular collimator is easier to position
Can reduce dose to patient by reducing repeats and does not expose patients fingers