Test Code LGBBS Globotriaosylsphingosine, Blood Spot
Test Down Notes
Effective September 21, 2023: This test is temporarily unavailable due to analytic issues. The downtime is expected to be >30 days. Order LGB3S as an alternative. See test notification 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
Supplies:
-Card-Blood Spot Collection (Filter Paper) (T493)
-Card Postmortem Screening (Filter Paper) (T525)
Container/Tube:
Preferred: Blood Spot Collection Card (Filter Paper)
Acceptable: Whatman Protein Saver 903 filter paper, PerkinElmer 226 filter paper, Munktell filter paper, Postmortem Screening Card or collected with EDTA, sodium heparin, lithium heparin, or ACD B-containing devices
Specimen Volume: 2 Blood spots
Collection Instructions:
1. Let blood dry completely on filter paper at ambient temperature in a horizontal position for a minimum of 3 hours.
2. At least 1 spot should be complete, (ie, unpunched).
3. Do not expose specimen to heat or direct sunlight.
4. Do not stack wet specimens.
5. Keep specimen dry.
Additional Information:
1. For collection instructions, see Blood Spot Collection Instructions.
2. For collection instructions in Spanish, see Blood Spot Collection Card-Spanish Instructions (T777).
3. For collection instructions in Chinese, see Blood Spot Collection Card-Chinese Instructions (T800).
CMH COLLECTION: Completely fill at least 2 circles on the filter paper card
Specimen Minimum Volume
1 Blood spot
Specimen Stability Information
Specimen Type | Temperature | Time | Special Container |
---|---|---|---|
Whole blood | Refrigerated (preferred) | 10 days | FILTER PAPER |
Frozen | 59 days | FILTER PAPER | |
Ambient | 10 days | FILTER PAPER |
Useful For
Screening of patients with Fabry disease using dried blood spots when a serum specimen is not available
This test should not be used for newborn screening followup.
Reject Due To
Shows serum rings Insufficient specimen Layering Multiple applications |
Reject |
Day(s) Performed
Tuesday
Report Available
3 to 9 daysReporting Name
Globotriaosylsphingosine, BSReference Values
Cutoff: ≤0.034 nmol/mL
Method Name
Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)
Performing Laboratory
Mayo Clinic Laboratories in RochesterCPT Code Information
82542