Methodology
Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Synonyms
Glucose tetrasaccharides; Glc4; Hexose tetrasaccharide; Hex4; Pompe Disease
Specimen Type
Urine, Random
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Wednesday
Standard TAT
7-14 Days
Collection Information
Specimen Required
1-3 mL Random Urine (no preservative)
Container Type
Sterile Container
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 14 Days; Refrigerated: 28 Days; Frozen: 87 Days (Preferred)
Test Volume Required
3 mL Random Urine
Minimum Test Volume
1 mL Random Urine
Processing Instructions
Order in Mayolink and send with Mayo courier Monday-Friday. If ordered as a NBS-Follow Up from Metabolic Clinic, DO NOT order in Mayolink and submit sample with manual requisition from provided by the Metabolic Coordinators on the CDPH account.
Comments
Not genetic; ok to send on Outpatients and Inpatients.
CPT Codes
82542, 82570
Revised
1/4/24
Initials
SA