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Test Code LGBBS Globotriaosylsphingosine, Blood Spot

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


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 (formerly Ahlstrom) 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).


Children's Mercy Hospital Note:

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 days

Reporting Name

Globotriaosylsphingosine, BS

Reference 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