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Method Evaluation
Flash cards for Clinical Methodologies
Question | Answer |
---|---|
State the reasons for a Quality Assessment Program | to ensure accuracy and validity of laboratory tests |
Describe the preanalytic, analytic, and post analytic phases of quality assurance and give examples of each phase. | Pre-analytical – activities that occur before the sample reaches the lab –Specimen collection issues, transport, preservatives used Analytical – activities that occur in the lab and pertain to the analysis of the sample –Test processing, QC data useful |
Name the Accrediting organizations involved in quality assessment. | Joint Commission on Accreditation of Healthcare Organizations (JCAHO) •College of American Pathologists |
List the errors quality control aims to prevent. | random error: instrument, sample, human systematic: accuracy of method, instrument, reagent decompostion |
Define the following terms: quality assurance, quality control, accuracy, precision, calibration, control, standards, reference ranges, outliers, systematic error, random error, sensitivity and specificity | Quality assurance: attempts to control analytical errors Quality control: refers to accuracy of method |
Discuss statistical measures used in precision and accuracy. | |
Relate standard Deviations with corresponding percentage values in Gaussian curve and the use of these statistical equations in QC | |
Calculate the following: mean, mode, median, coefficient of variation | |
Recognize equation for standard deviation | |
Analyze data to determine analytical error prevention | |
Assess systematic and random errors and give examples of each. | |
Discuss the use of controls in laboratory procedures | |
Detect a result that is out of control | |
Be able to interpret mean, standard deviations, and violations on Levy-Jennings chart | |
Determine if there is a shift or trend given laboratory data | |
Evaluate laboratory data using multi-rules | |
Discuss basic concepts of Lean Sigma Six process improvement |