When Using Moving Averages to Monitor an Automated Hematology Instrument

question 4

Multiple Choice

When using moving averages to monitor an automated hematology instrument, the clinical laboratory professional notes that a moving average falls out of range, but the recently performed quality control was acceptable, what would this indicate?

• A) The instrument should be recalibrated.
• B) The range is incorrect for the moving average.
• C) The patient samples for last 20 results were from a single location.
• D) The clinical laboratory professional should open and run new control materials.

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