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Lab Test Dictionary

Lysosomal Storage Disorders Screen, Random Urine (LSDS)


MALDI-TOF MS; LC-MS/MS; Medical Interp

Specimen Type

Urine, Random

Performing Lab

Mayo Medical Lab

Epic ID

Other Reference Test

Lab Test Days


Standard TAT

14-18 Days

Collection Information

Specimen Required

3-10 mL Random Urine

Container Type

Sterile Container

Collection Instructions

Collect a first-morning, random urine specimen. Do not administer low-molecular weight heparin prior to collection. Baby wipes or wipes containing soaps and lotions should not be used prior to collection because these may interfere with results. Complete a Mayo Biochemical Genetics Patient Information form and submit to lab with specimen.

Processing Information - Lab Use Only

Transport Temperature


Specimen Stability

Room Temp: 7 Days; Refrigerated: 15 Days (Preferred); Frozen: 365 Days

Test Volume Required

10 mL Random Urine

Minimum Test Volume

3 mL Random Urine

Processing Instructions

Include Mayo Biochemical Genetics Patient Information form. Order in Mayolink and send with Mayo courier Monday-Friday.

CPT Codes

83789, 83864, 84377, 82570