Quality Assurance Flashcards
Name the regulations radiographers must follow
IR(ME)R
Ionising radiation (medical examinations) regulations
IRR
Ionising radiation regulations
What is the definition of quality assurance?
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
Why do we need quality assurance?
Reduces uncertainties and errors
Reduces likelihood of accidents
Highlights problems sooner
Describe IRR - section 33
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
Describe a good Quality Assurance program
Comprehensive, but easy to maintain
Comply with national regulations
Regularly reviewed and audited
Have time allocated for staff to carry out
What should be done with QA information?
Documented
Further action taken if needed
Regular QA meetings
What is a critical examination?
An exam carried out on new equipment that will confirm it is safe for both patients and staff
Describe acceptance testing
Inventory
Installation
Function
Clinical use: Images ok?
Occurs 2 times; right after installation, 1 month before end of warranty
Describe commisioning
Test carried out to ensure equipment is safe for use and sets baseline values
Why is QA important?
Ensures safety
Achieves ALARP
Achieve good quality images
Can identify equipment deterioration
How can you extend the X-ray Tube life?
Don’t prep tube unnecessarily
Avoid consistent high exposure
Avoid long/low exposure
What’s involved in a safety check?
Checking warning lights, cables, plugs
How do you test AECs?
Vary kVp, mA, part thickness, and detector
Should provide consistent exposure
Describe some other tests we are required to carry out
Grid assessment
Monitor detector dose indicator
Cassette and detector assessment
PACS monitor test
Describe some artefacts seen and what causes them
White specs = unclean or cracked plates
Vertical bands = dirty light guide
Multiple/ghost images = un-erased detector
Aliasing = grid/scan frequency mismatch
