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Question 228 / 323
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qualitycontrol-228
INTERPRETATION OF LEVEY-JENNING CHARTS — The text provides specific interpretation guidance for QC chart patterns. What does an EXCESSIVE SCATTER pattern on a Levey-Jenning chart indicate?
A. Excessive scatter indicates systematic bias in the analytical method
B. Excessive scatter indicates a sudden shift in control values
C. EXCESSIVE SCATTER MAY BE OBSERVED DUE TO INCONSISTENT WAYS OF WORKING OF LABORATORY TECHNICIAN — it indicates RANDOM ERROR and increased imprecision in the analytical system
D. Excessive scatter is a normal finding that requires no investigation
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