Test Catalog

Test ID: LSDS    
Lysosomal Storage Disorders Screen, Random, Urine

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

Specimen Type Describes the specimen type validated for testing


Ordering Guidance

This test is the recommended screening test for the initial workup of a suspected lysosomal storage disorder (LSD) when the patient's clinical features are not suggestive of any particular LSD.

Necessary Information

1. Patient's age is required.

2. Biochemical Genetics Patient Information (T602, in Special Instructions) is recommended. This information aids in providing a more thorough interpretation of results. Send information with specimen.

Specimen Required Defines the optimal specimen required to perform the test and the preferred volume to complete testing

Patient Preparation: 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.

Supplies: Urine Tubes, 10 mL (T068)

Container/Tube: Plastic, 10-mL urine tube

Specimen Volume: 10 mL

Pediatric Volume: 3 mL

Collection Instructions: Collect a first-morning, random urine specimen.

Special Instructions Library of PDFs including pertinent information and forms related to the test


Biochemical Genetics Patient Information (T602) in Special Instructions

Specimen Minimum Volume Defines the amount of sample necessary to provide a clinically relevant result as determined by the Testing Laboratory

3 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected

All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the performing laboratory, alternate acceptable temperatures are also included

Specimen TypeTemperatureTimeSpecial Container
UrineRefrigerated (preferred)15 days
 Frozen 365 days
 Ambient 7 days