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REFERENCE RANGE — The text gives a specific formula for calculating REFERENCE RANGE. If the mean fasting blood glucose is 90 mg/dL and 1 SD = 10 mg/dL, what is the REFERENCE RANGE?
A. 80–100 mg/dL (mean ± 1SD)
B. 70–110 mg/dL (mean ± 2SD)
C. 60–120 mg/dL (mean ± 3SD)
D. 85–95 mg/dL (mean ± 0.5SD)
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