quality assurance & justifying

Question 1

what is quality assurance?

Answer 1

making sure radiographs are accurately diagnosed and As Low As Reasonably Practicable and taking the requirements of IRR17 and IRMER17

Question 2

what are some receptor damages that could affect the image?

Answer 2

Scratches - white lines
Cracking network of white lines
Delamination → white areas around edge

Question 3

what test would you carry out to check receptor image quality?

Answer 3

A step wedge is one type of test object used to check image quality/contrast

Question 4

what is the system for clinical image quality?

Answer 4

Acceptable - no errors
non acceptable - errors, either with positioning or the image receptor

Question 5

Potential faults that could happen when taking a radiograph and result in a fault with the radiograph?

Answer 5

• Exposure factors, underexposure, over exposure
• Incorrect exposure settings, patient’s tissues too thick, faulty timer on X-ray unit
• Developing factors
• Inappropriate light source (film), inappropriate display screen (digital),
  excessive environmental light
  image too dark or too light

Question 6

All radiographs carry potential harm for the patient & so must only be used when necessary & appropriate This involves 2 steps?

Answer 6

Considering if a radiograph is useful in a particular clinical case

Deciding if the radiograph is legally justified for that case

Question 7

what is important when justifying a radiograph?

Answer 7

the risk associated with each type of radiograph

Know which clinical situations lead to visible changes on radiographs

Understand what each type of radiograph can show you (& what it cannot)

Know what information is required to help justify a radiograph

Question 8

what are the 4 roles involved in all radiographs?

Answer 8

Employer-
Referrer - requests pt radiograph
Practitioner- justifies pts radiograph
Operator-