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Xylose Absorption Test (1 h), Serum

Test ID: XYL1

Test

Method

Quantitative Spectrophotometry

Report Includes

Xylose - 1 h

Specimens

Serum

Test Location

QC, CA

Test Version

6-May-2021

Specimen

Specimens

Serum

Sample Volume

2 mL

Collection & Handling

Collection Instructions

Test may be conducted with either a 5g or 25g Xylose dose. Refer to separate listing for 2-hour test protocol. Collect baseline serum specimen (≥8 hours fast), separate and label a 2 mL aliquot. Administer Xylose dissolved in 250 mL water followed by another 250 mL water. Collect post-dose serum at 1 h, separate and label another 2 mL aliquot.

Handling Information

Store and send specimens frozen.

Additional Information

Specimens must be clearly labelled to distinguish baseline and timed (1 h) specimen.

Stability

Refrigerated 7 days
Frozen 30 days

Test Version

6-May-2021

Performance / Interpretation

Method

Quantitative Spectrophotometry

Turnaround Time

30 days

Results

Name Units Reference Range Conversion Factor
Xylose - 1 h mmol/L
  • Interpretation Guide:
  • 1 hours Post-Dose, 25 g Xylose: >1.40
  • 5 g Xylose: >1.33

Test Location

QC, CA

Test Version

6-May-2021

Interface / Setup

Test Version

6-May-2021