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?

• 1 Increase 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
• 2 Investigate the preanalytic collection process, implement corrective action and staff education, then monitor whether the indicator improves ✓ 정답
• 3 Suppress hemolysis indices in the laboratory information system so that fewer specimens are flagged and rejected automatically, risking release of unreliable results
• 4 Change analyzer calibration parameters without examining the collection practice or device training, potentially introducing bias and compromising result accuracy

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