D-Xylose, 1 hour Serum

Last Modified: 6/17/2019 10:50:27 AM

Medical Necessity Documentation:  
Client Notes: Please contact PHL Client Response at 266-1500 to schedule an appointment
Patient Preparation:

Adults: Patients must be fasting for at least 8 hours (no food or fluids except water).
Infants: Fasting 4 hours

Specimen Requirements: 1.0 mL Serum in a SST Gold Top Tube
Collection Instructions: Draw patient 1 hour after oral ingestion of d-Xylose
Minimum Volume: 1.0 mL
Transport & Storage: Temperature/Stability: 7 days Ambient
7 days Refrigerated
30 days Frozen
Reference Range: < 6 years: > 14.9 mg/dL
> 6 years: > 19.9 mg/dL
Critical Ranges:  
Test Comments:  
Methodology: Colorimetric
Clinical Significance:
Xylose AbsorptionTestisusefulinscreeningforcarbohydratemalabsorption.
Documentation: There are only a few mild adverse reactions reported with this test. They include nausea, cramping and diarrhea for a few hours.
Custom Panel: No


Turn Around Time: 3 to 6 days
Days Performed: Monday, Thursday
Sites Performed: Quest - Chantilly
PHL Test Code: XYLOS
EPIC Test Code: LAB2515
Send Out Test Code: 147233
Alternate Test Names: Xylose Absorption
Included Tests:  
CPT Coding: 84620

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