Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Synonyms
GAGS
Specimen Type
Urine, Random
Performing Lab
Mayo Medical Lab
Epic ID
LAB08022
Lab Test Days
Varies
Standard TAT
8-15 Days
Collection Information
Specimen Required
1-2 mL Random Urine
Container Type
Sterile Container
Collection Instructions
Collect an early morning urine specimen (preferred). Reason for referral is required.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp=7 Days; Refrigerated=90 Days (Preferred); Frozen=365 Days
Test Volume Required
2 mL Random Urine
Minimum Test Volume
1 mL Random Urine
Processing Instructions
Order in Mayolink and send with Mayo courier Monday-Friday. Include diagnosis in reason for referral or in comment.
Included Tests
Dermatan Sulfate, Heparan Sulfate, Chondroitin-6 Sulfate and Keratan Sulfate.
CPT Codes
83864, 82570
Revised
05-01-21
Initials
SL