QA/QC Flashcards
Coherent system that monitors both equipment and people
Quality Management ( QM)
- Consists of QA & QC
__ deals with monitor, instrumentation and equipment maintenance
QC (Quality control)
RT’s can get certified through ___ to become a QM technologist
ARRT
= post primary certification
____ pertains to people and services
Quality Assurances (QA)
____ is the largest accrediting body for hospitals
TJC ( The joint commission)
Who created the 10 step QA program and what is its function
-List 4 steps
Created by TJC
- purpose is to resolve identified pt. care problems
1. Assign responsibility
2. Describe scope of care
3. Identify aspects of care
4. Take action to improve care
What is the acrediting body for radiography program at chaffey?
JRCERT ( Joint Review Committee On Education in Radiologic Technology)
List some QA responsibilities
- Scheduling
- Reception
- Preparation
- Image interpretation
Who is ultimately responsible for creating standards?
-Radiologist -management
Who is expected to abide by standards?
Everybody
What QA steps are the most important to QA technologist?
- Monitoring problems such as:
- Establish criteria
- Performing monitoring test
- Collecting data
- Analyzing Data
- Evaluating data
The actions necessary to control and verify the performance of equipment
Quality Control
What is the prime responsibility of radiologic technologist in QM
Ensuring the quality of the radiographic image
When does effective QC begin?
Before equipment has been purchased to enure that the right machines are chosen to meet needs
What is the most involved step of QC
Monitoring equipment performance
QC is principally the responsibility of ____
Medical Physicist
Who is the accrediting body for imaging facilities?
ACR ( American College of Radiology)
Name the 3 major categories of Quality control
- Acceptance testing
- Routine performance monitoring
- Maintenance
Describe Acceptance testing
- It is testing for new installed or repaired equipment
- Tested by: designate tech, physicist
- Sets acceptance limits
Describe Routine performance Monitoring testing
- Ensure performance as expected
- Tested by: Designated tech & physicist
Describe Error Maintenance testing
-When errors occur in performance
Tested by: Vendor service personnel
____ maintenance usually makes repair maintenance unnecessary
Preventative
Name items that QC test are performed on “in screen film” radiography
- Filtration
- Collimation
- Focal spot size
- kVp calibration
- Exposure time accuracy
- Intensifying screens
- Protective apparel
Describe QC - Filtration
- To ensure that radiographic unites have min. of 2.5 mm AL
- Determined by testing HVL
- Done by physicist
- Checked Annually
- Both digital & Film screen
Describe QC-Collimation
- Done to ensure that the x-ray field aligns with light field
- Margin of error: within 2% of SID
- Checked semiannually ( 2x’s / year)
- Both Digital and film screen
- Tested by QA personell
Describe Quality Control - Focal Spot Size
- What is it
- Margin of error
- How many times is it checked
- 3 tools to measure are?
-measure of spatial resolution of x-ray tube
- Margin of error” within 50%
- Checked annually
3 tools used to measure: 1. Pinhole camera 2.Star Pattern 3.Slit camera (most common)
What is the margin of error for kVp and how often is it checked?
10% Bushong , 5% otherwise
-Checked annually
Describe QC Exposure timer
-ensures that back up time does not exceed 6 s or 600 mAs
check annually
-margin of error: within 20% under 10 ms. or 5% over 10 ms
Which towels are best for cleaning intensifying screens
Sterile towels or microfiber cloths because they are lent free
Test pattern that is recommended by the ACR to evaluate integrity of digital monitor display
-What does it evaluate:
SMPTE ( Society of motion Picture and tv engineers)
-Contains luminace patches that range from 5%-95%
Evaluates:
1. resolution
2. Luminace
Set of 18 test patterns to manage QC for digital display devices
AAPM TG 18
American Ass. of Physicist in Medicine Task Group 18 test patterns
The best digital viewing is ___
straight on
visual assessment of geometric distortion can be performed using ____
TG-18 QC and TG 18 LVP/LPH patterns
Acceptable distortion: 2% -primary class 5% secondary class
Name 2 types of reflection ( Digital QC)
or Digital display reflection appears as:
- Specular
2. Diffuse
____ light contributes significantly to image on screen
Ambient light
__refers to the relationship between displayed luminance and input values of a standardize display system
Luminance response
quantitative measurement of the ability of the display system to produce separable images of different points of an object with high fidelity
Spatial resolution
any high-frequency fluctuations or patterns that interfere with detection of the true signal
Noise
___ set up and implement ongoing QC and training programs
PACS administration
what does CQI stand for and what is it
Continuous Quality Improvement
- Focuses on continuously improving the totality of the system within which people function as a team
Focuses on continuously improving the totality of the system within which people function as a team
CQI ( Continuous Quality Improvement)
Focuses on maintaining a certain level of quality by setting forth standards and protocols to be followed and implemented
QA/QC
Name tech responsibilites in digital QA/QC
- Clean cassettes, IR. CR reader ,printer, mouse, keyboard
What is the turn around time for
- acute care facilities:
- Out pt. facilities
- 24 hours
2. up to a week
What is the most involved step of QC
Monitoring equipment performance
Measures light intensity at several areas of the illuminator
Photometer
Patterns that can be used by an RT to perform checks to ensure proper system performance
AAPM TG 18
(American Association of Physicist in Medicine Task Group 18 test pattern
