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HelpTest Code LGBWB Globotriaosylsphingosine, Blood
Test Down Notes
This test is temporarily unavailable. For additional details, see test update here.
Ordering Guidance
Serum is the recommended specimen type for diagnosing and monitoring patients with Fabry disease. For more information see LGB3S / Globotriaosylsphingosine, Serum.
Specimen Required
Container/Tube:
Preferred: Lavender top (EDTA)
Acceptable: Green top (sodium heparin, lithium heparin) and yellow top (ACD B)
Specimen Volume: 1 mL
Collection Instructions: Send whole blood specimen in original tube. Do not aliquot.Specimen Minimum Volume
0.25 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Whole blood | Refrigerated (preferred) | 72 hours | |
| Ambient | 48 hours |
Useful For
Screening of patients with Fabry disease when a serum specimen is not available
This test should not be used for newborn screening followup.
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Day(s) Performed
Tuesday
Report Available
3 to 9 daysReporting Name
Globotriaosylsphingosine, BReference Values
Cutoff: ≤0.034 nmol/mL
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Performing Laboratory
Mayo Clinic Laboratories in Rochester
CPT Code Information
82542