The measurement of 1,5-anhydroglucitol is reported in which unit?

• A. mg/dL
• B. ug/mL
• C. mmol/L
• D. g/dL

Answer: (B)

The measurement is reported in micrograms per milliliter (μg/mL) because 1,5-anhydroglucitol is present in blood at relatively low concentrations. Using a mass-per-volume unit like μg/mL keeps the reported numbers practical and easy to interpret for routine clinical testing. If you used mg/dL or g/dL, the values would be very small or require awkward decimals, and mmol/L would force a conversion from mass to moles, which isn’t the common reporting practice for this analyte. In practice, laboratories quantify 1,5-anhydroglucitol directly as μg/mL, reflecting its typical serum/plasma concentration range. For context, 1 μg/mL is equivalent to about 1 mg/L, which is about 0.1 mg/dL, so even values in the tens of μg/mL translate to small, manageable numbers in mg/L or mg/dL.