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The page below is a sample from the LabCE course Quality Control. Access the complete course and earn ASCLS P.A.C.E.-approved continuing education credits by subscribing online.

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QC testing has failed. The instrument operator has checked control and reagent dates and storage conditions and everything is acceptable. The operator further tests new bottles of control and QC continues to fail. What is the next step that should be followed in troubleshooting this QC problem?

Please select the single best answer