A patient's hemoglobin changes from 14.2 g/dL to 7.1 g/dL within two hours without a compatible clinical event. What is the best first laboratory response to the delta-check alert?

• 1 Report both results automatically, noting the delta-check alert in the patient record immediately
• 2 Delete the previous result, assuming it was a clerical error from the start without further investigation
• 3 Verify patient and specimen identification, assess specimen integrity, and repeat or recollect per policy ✓ 정답
• 4 Change the current result to the previous value, overriding the new measurement without review

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