Which of the following is an example of a preanalytical error during specimen processing?

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Multiple Choice

Which of the following is an example of a preanalytical error during specimen processing?

The key idea is that processing steps must properly separate the sample’s components before analysis. Centrifugation is a processing step that creates clear serum or plasma by pulling cells away from the liquid. If centrifugation is inadequate, separation is incomplete: cells may remain in the plasma/serum or clotting material may not be fully removed, leading to interference and inaccurate test results. That makes inadequate centrifugation a processing-stage error. Faulty collection technique happens during the collection phase, not during processing. An insufficient specimen refers to not enough blood drawn, which is also a collection issue. Patient stress and anxiety is related to the patient condition and collection process but not a processing error.

The key idea is that processing steps must properly separate the sample’s components before analysis. Centrifugation is a processing step that creates clear serum or plasma by pulling cells away from the liquid. If centrifugation is inadequate, separation is incomplete: cells may remain in the plasma/serum or clotting material may not be fully removed, leading to interference and inaccurate test results. That makes inadequate centrifugation a processing-stage error.

Faulty collection technique happens during the collection phase, not during processing. An insufficient specimen refers to not enough blood drawn, which is also a collection issue. Patient stress and anxiety is related to the patient condition and collection process but not a processing error.

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