What is a delta check in laboratory testing?

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Multiple Choice

What is a delta check in laboratory testing?

Delta checks compare a patient’s current test result with their previous results to spot unexpected changes. By looking at how a patient’s values have evolved over time, the lab can flag results that swing far outside the patient’s usual pattern, suggesting possible errors such as mislabeling, a swapped specimen, data entry mistakes, or an instrument issue. This patient-specific trend awareness helps catch problems before they impact care, since it relies on the individual’s own history rather than population reference ranges. It isn’t about real-time data entry, instrument calibration, or routine quality-control sampling—it's about monitoring significant deviations from a patient’s own past results.

Delta checks compare a patient’s current test result with their previous results to spot unexpected changes. By looking at how a patient’s values have evolved over time, the lab can flag results that swing far outside the patient’s usual pattern, suggesting possible errors such as mislabeling, a swapped specimen, data entry mistakes, or an instrument issue. This patient-specific trend awareness helps catch problems before they impact care, since it relies on the individual’s own history rather than population reference ranges. It isn’t about real-time data entry, instrument calibration, or routine quality-control sampling—it's about monitoring significant deviations from a patient’s own past results.

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