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HelpTest Code OLIGU Oligosaccharide Screen, Random, Urine
Useful For
Screening for selected oligosaccharidosis
Disease States
- Sialidosis
- Galactosialidosis
Reporting Name
Oligosaccharide Screen, USpecimen Type
UrineOrdering Guidance
This is the recommended test when clinical features are suggestive of, or when molecular testing results suggest, an oligosaccharidosis disorder that can be identified by this test.
The recommended screening test for the initial workup of a suspected lysosomal storage disorder, particularly when clinical features are nonspecific, is LSDS / Lysosomal Storage Disorders Screen, Random, Urine.
Necessary Information
1. Patient's age is required.
2. Biochemical Genetics Patient Information (T602) is recommended. This information aids in providing a more thorough interpretation of results. Send information with specimen.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 8 mL
Pediatric Volume: 2 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative
3. Immediately freeze specimen.
Specimen Minimum Volume
2.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Frozen (preferred) | 365 days | |
| Refrigerated | 15 days | ||
| Ambient | 7 days |
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Reference Values
An interpretive report will be provided.
Day(s) Performed
Monday
Report Available
8 to 15 daysSpecimen Retention Time
1 monthPerforming Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
84377
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| OLIGU | Oligosaccharide Screen, U | 49284-3 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 64889 | Oligosaccharide Screen, U | 49284-3 |
Testing Algorithm
Oligosaccharide analysis may be considered in the workup of unexplained refractory epilepsy. For more information see:
-Epilepsy: Unexplained Refractory and/or Familial Testing Algorithm
Special Instructions
Forms
1. Biochemical Genetics Patient Information (T602)
2. If not ordering electronically, complete, print, and send a Biochemical Genetics Test Request (T798) with the specimen.
Genetics Test Information
Oligosaccharidoses are characterized by the abnormal accumulation of incompletely degraded oligosaccharides in cells and tissues and the corresponding increase of related free oligosaccharides in the urine.
Clinical features of the oligosaccharidoses often overlap; therefore, urine screening is an important tool in the initial workup for these disorders.
Enzyme or molecular analysis is required to make a definitive diagnosis.