IQC DAN WESGUARD RULES

WHICH OF THIS GRAPH SHOWN IQC THAT IS LOW ACCURACY HIGH PRECISION

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WHICH OF THIS GRAPH SHOWN IQC THAT IS HIGH ACCURACY HIGH PRECISION

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WHICH OF THIS GRAPH SHOWN IQC THAT IS HIGH ACCURACY LOW PRECISION

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What is the minimum data to establish mean?

• 3

• 20

• 10

If the analyzer is not in a good condition, can we establish mean?

• YES

• NO

What condition can be allowed to re-establish mean?

• Change personal/operator

• Change number lot of reagents

• Major Maintenance

Do we need to re-establish mean when change number lot of QC?

• Yes

• No

Among the basic rules in Westgard scheme listed below, which type of rule that is used as a warning rule?

• 1_2s

• 1_3s

• 2_2s

Above is the Levey-Jennings chart measuring a single control. What Westgard rule is violated in this chart?

• Rule 1_2s

• Rule 1_3s

• Rule 2_2s

The picture shows a Levey-Jennings chart. Which of the following is the best conclusion based on the circled data?

• The data fall within 2SD of the mean. So the recent run can be accepted.

• The data have several outliers. So the recent run must be rejected.

• The data comply with at least 3 of the Wesgard Rules. So the recent run may be accepted.

• The data violate the Wesgard Rule of 10x. So the recent run must be rejected.