Review the folowing QC information and answer the question below: 1. Level 1 Mean QC value for BUN = 15 mg/dl, 1 SD = 2

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Review the folowing QC information and answer the question
below:
1. Level 1 Mean QC value for BUN = 15 mg/dl, 1 SD = 2
2. Level 2 Mean QC value for BUN = 50 mg/dl, 1
SD = 5
the QC resulst obtained by the medical lab scientist:
QC for level 1 = 22 mg/dl
Qc for level 2 = 46 mg/dl
Which QC rule is in violation?
a. 1 2s
b. 2 2s
c. 1 3s
d No rule in violation