Methodology
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Specimen Type
Random Urine
Performing Lab
Mayo Medical Laboratory
Epic ID
Other Reference Test
Lab Test Days
Thurs
Standard TAT
5 to 11 days
Collection Information
Specimen Required
1 mL Random Urine
Processing Information - Lab Use Only
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated=30 days, Frozen=90 days
Test Volume Required
1 mL Urine
Minimum Test Volume
0.5 mL Urine
Processing Instructions
Mayo Biochemical Genetics Patient Information form required.
Included Tests
Free Sialic Acif, Total Sialic Acid, Total/Free Ratio
Comments
This is a recommended screening test for patients suspected to have a diagnosis of free sialic acid storage disease. Urine oligosaccharides are also recommended for patients with a suspected diagnosis of sialidosis or galactosialidosis.
CPT Codes
84275 (not genetic)
Revised
8/5/25