Methodology
Flow Injection Analysis-Tandem Mass Spectrometry (FIA-MS/MS)
Synonyms
GAA; Pompe Disease; BS; Alpha Glucosidase
Specimen Type
Blood Spots
Performing Lab
Mayo Medical Lab
Epic ID
Other Reference Test
Lab Test Days
Daily
Standard TAT
2-3 Days
Collection Information
Specimen Required
1-3 Blood Spots
Container Type
Blood Spot Card
Collection Instructions
Call lab for Blood Spot Collection Card located in the Mayo file. Whatman Protein Saver 903 paper is acceptable. It is also acceptable to collect whole blood in an ACD (yellow-top), EDTA (lavender-top) or heparin (green-top) tube and transferred onto filter paper. Let blood dry completely on the filter paper at room temp in a horizontal position for a minimum of 3 hours. Do not expose specimen to heat or direct sunlight. Do not stack wet specimens. Keep specimen dry.
Processing Information - Lab Use Only
Transport Temperature
Refrigerate-OK/Frozen-OK/Ambient-OK
Specimen Stability
Room Temp: 7 Days; Refrigerated: 56 Days (Preferred); Frozen: 56 Days
Rejection Criteria
Blood spot that shows serum rings or has multiple layers
Test Volume Required
3 Blood Spots
Minimum Test Volume
1 Blood Spot
Processing Instructions
Order in Mayolink. Send with Mayo courier Monday-Friday. Let blood dry completely on the filter paper at room temp in a horizontal position for a minimum of 3 hours. Do not expose specimen to heat or direct sunlight. Do not stack wet specimens. Keep specimen dry.
Comments
Due to reference range differences, this test is the appropriate test for patients older than 6 weeks of age.
CPT Codes
83789
Revised
07-24-19
Initials
SL