A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
d-Xylose Absorption Test, Blood, Fasting [1198X]
MessageFor Specimen Integrity during Extreme Weather see the “Lockbox Usage in Extreme Weather” document at the top of this page.
Test Code
XYLOSE
Alias/See Also
1198
CPT Codes
84620
Preferred Specimen
4 mL whole blood collected in a sodium fluoride (gray-top) tube
Patient Preparation
For fasting test, patient should fast overnight before blood collection.
Minimum Volume
1 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Colorimetry (C)
Setup Schedule
Set up: Mon, Thurs; Report available: 1-3 days
Reference Range
Accompanies report
Clinical Significance
The Xylose Absorption Test is useful in screening for carbohydrate malabsorption.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Last Updated: November 29, 2021