Quality Assurance Flashcards

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1
Q

Name the regulations radiographers must follow

A

IR(ME)R
Ionising radiation (medical examinations) regulations
IRR
Ionising radiation regulations

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2
Q

What is the definition of quality assurance?

A

A programme for the systematic monitoring and evaluation of the various aspects of a project, service or facility to ensure that standards of quality are being met

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3
Q

Why do we need quality assurance?

A

Reduces uncertainties and errors
Reduces likelihood of accidents
Highlights problems sooner

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4
Q

Describe IRR - section 33

A

QA is required to ensure equipment is effective, through QA tests
Adequate testing before clinical use
Adequate testing after maintenance
Measurement of dose for assessment

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5
Q

Describe a good Quality Assurance program

A

Comprehensive, but easy to maintain
Comply with national regulations
Regularly reviewed and audited
Have time allocated for staff to carry out

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6
Q

What should be done with QA information?

A

Documented
Further action taken if needed
Regular QA meetings

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7
Q

What is a critical examination?

A

An exam carried out on new equipment that will confirm it is safe for both patients and staff

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8
Q

Describe acceptance testing

A

Inventory
Installation
Function
Clinical use: Images ok?
Occurs 2 times; right after installation, 1 month before end of warranty

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9
Q

Describe commisioning

A

Test carried out to ensure equipment is safe for use and sets baseline values

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10
Q

Why is QA important?

A

Ensures safety
Achieves ALARP
Achieve good quality images
Can identify equipment deterioration

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11
Q

How can you extend the X-ray Tube life?

A

Don’t prep tube unnecessarily
Avoid consistent high exposure
Avoid long/low exposure

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12
Q

What’s involved in a safety check?

A

Checking warning lights, cables, plugs

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13
Q

How do you test AECs?

A

Vary kVp, mA, part thickness, and detector
Should provide consistent exposure

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14
Q

Describe some other tests we are required to carry out

A

Grid assessment
Monitor detector dose indicator
Cassette and detector assessment
PACS monitor test

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15
Q

Describe some artefacts seen and what causes them

A

White specs = unclean or cracked plates
Vertical bands = dirty light guide
Multiple/ghost images = un-erased detector
Aliasing = grid/scan frequency mismatch

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16
Q

Why could an image be rejected?

A

Patient motion
Positioning error
Improper technique
Improper exposure

17
Q

Describe some other QA tests that are carried out

A

Mobile units - LBD, kV output, dose
Lead aprons - shielding integrity