CLIA: General Laboratory / Misc.

Question

Which one of the following would not result in a rejection of an analytical run under the Westgard rules:

Please select the single best answer

One control observation exceeding the mean by 2.5 SD

One control observation exceeding the mean by 3.5 SD

Two consecutive control observations, one exceeding the mean by +2.5 SD, and the other by -2.5 SD

Ten consecutive control observations all less than the mean

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