تويت
Quality Control in a Virology Laboratory
General Principles of Quality Control
The validity of diagnostic test results produced in each laboratory is entirely dependent on the measures employed before, during, and after each assay. Consistency in the production of good results requires an overall program that includes quality assurance, quality control, and quality assessment.
Definitions
Quality Control - QC refers to the measures that must be included during each assay to verify that the test is working properly.
Quality Assurance - QA is defined as the overall program that ensures that the final results reported by the laboratory are correct
Quality Assessment - quality assessment (also known as proficiency testing) is a means to determine the quality of the results generated by the laboratory. It is usually an external evaluation of the laboratory's performance. Internal quality assessment programs can also be instituted. Quality assessment is a challenge to the effectiveness of the QA and QC programs.
"The aim of quality control is simply to ensure that the results generated by the test are correct. However, quality assurance is concerned with much more: that the right test is carried out on the right specimen, and that the right result and right interpretation is delivered to the right person at the right time"
Many variables can affect the quality of results
The educational background and training of the laboratory personnel
The condition of the specimens
The controls used in the test runs
The interpretation of the results
The transcription of results
The reporting of results
Quality Assurance
QA is an ongoing process that requires daily attention by all laboratory staff. Some fundamental issues in QA related to specimens include;
Inspection of all specimens upon receipt and before testing to ensure that they are suitable, Lipaemic, haemolysed or contaminated samples should not be used as these may interfere with assay performance.
Patient information should be available on the tube
If the serum sample is frozen before testing, the sample must be well mixed after thawing and before testing.
All test results, controls and records must be checked and rechecked to ensure that the proper specimen was resulted before reporting.
QA also includes such factors as;
Reporting results in a timely manner
Being sure that the results are reported to the appropriate individual
Making sure that the laboratory is functioning in the most efficient way
Including a continuing education program for laboratory workers
Evaluation of laboratory personnel to identify areas for improvement
Using the most reliable tests
Reviewing transcriptional measures
Verifying final reports
The following sections indicate components that must be continually monitored and represent fundamental aspects of a good QA program
للزيادة http://virology-online.com/general/QualityControl.htm
General Principles of Quality Control
The validity of diagnostic test results produced in each laboratory is entirely dependent on the measures employed before, during, and after each assay. Consistency in the production of good results requires an overall program that includes quality assurance, quality control, and quality assessment.
Definitions
Quality Control - QC refers to the measures that must be included during each assay to verify that the test is working properly.
Quality Assurance - QA is defined as the overall program that ensures that the final results reported by the laboratory are correct
Quality Assessment - quality assessment (also known as proficiency testing) is a means to determine the quality of the results generated by the laboratory. It is usually an external evaluation of the laboratory's performance. Internal quality assessment programs can also be instituted. Quality assessment is a challenge to the effectiveness of the QA and QC programs.
"The aim of quality control is simply to ensure that the results generated by the test are correct. However, quality assurance is concerned with much more: that the right test is carried out on the right specimen, and that the right result and right interpretation is delivered to the right person at the right time"
Many variables can affect the quality of results
The educational background and training of the laboratory personnel
The condition of the specimens
The controls used in the test runs
The interpretation of the results
The transcription of results
The reporting of results
Quality Assurance
QA is an ongoing process that requires daily attention by all laboratory staff. Some fundamental issues in QA related to specimens include;
Inspection of all specimens upon receipt and before testing to ensure that they are suitable, Lipaemic, haemolysed or contaminated samples should not be used as these may interfere with assay performance.
Patient information should be available on the tube
If the serum sample is frozen before testing, the sample must be well mixed after thawing and before testing.
All test results, controls and records must be checked and rechecked to ensure that the proper specimen was resulted before reporting.
QA also includes such factors as;
Reporting results in a timely manner
Being sure that the results are reported to the appropriate individual
Making sure that the laboratory is functioning in the most efficient way
Including a continuing education program for laboratory workers
Evaluation of laboratory personnel to identify areas for improvement
Using the most reliable tests
Reviewing transcriptional measures
Verifying final reports
The following sections indicate components that must be continually monitored and represent fundamental aspects of a good QA program
للزيادة http://virology-online.com/general/QualityControl.htm
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