Laboratory Quality Control/CLIA Exam Questions With Verified Answers

Laboratory Quality Control/CLIA Exam Questions With Verified Answers. *Quality Control (QC)* - answerA set of activities designed to evaluate the produce quality Statistical process used to monitor and evaluate the analytical process that produces patient results Testing QC - answer-The process of execution a system with the intent of finding quality defects -Testing therefore is product oriented and thus is in the QC domain -testing for quality isn't assuring quality it's controlling it *QC Sampling* - answerNumber of QCs affects error detection probability Evenly distributed throughout the run (5%) Frequency depends on method ruggedness Clinical need How many QC needed for research - answer3 How many QC needed for clinical monitoring - answer2 *Sample Variability (problems)* - answerBiological/physiological Analytical Test Performance PreAnalytical Variability (~50% of total errors) part comes from pre analytical variability Interfering substances Interfering substances - answerConcomitant meds (Validation?) Metabolite Abnormalities Sample Section - answer-Patient Identification and labeling not know who patient is -Phlebotomy technique -Sample volume correct anticoagulant -Sample collection tube