When Inspecting an Internal Quality-Control Plot for a Blood Gas

question 19

Multiple Choice

When inspecting an internal quality-control plot for a blood gas analyzer, you notice several data points sporadically appearing outside the 2 standard deviation (SD) range. This represents what type of analytic error?
1) Random error
2) Bias
3) Imprecision
4) Systematic error

• A)1 and 3 only
• B)2 and 4 only
• C)1, 2, and 4 only
• D)1, 2, 3, and 4

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