A laboratory's monthly indicator shows a sharp increase in hemolyzed chemistry specimens immediately after a new blood-collection device was introduced. Which response best fits a quality-system approach?
1Increase all chemistry reference intervals to accommodate the higher hemolysis rate observed with the new device, which may mask underlying issues and delay detection of true patient abnormalities
2Investigate the preanalytic collection process, implement corrective action and staff education, then monitor whether the indicator improves✓ 정답
3Suppress hemolysis indices in the laboratory information system so that fewer specimens are flagged and rejected automatically, risking release of unreliable results
4Change analyzer calibration parameters without examining the collection practice or device training, potentially introducing bias and compromising result accuracy
해설
The temporal association points to a preanalytic risk. A quality system investigates the process, documents and implements corrective action, and monitors an indicator to determine whether the intervention was effective.