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Test Code IGA3 Immunoglobulin A (IgA), Serum


Ordering Guidance


Cascade testing is recommended for celiac disease. Cascade testing ensures that testing proceeds in an algorithmic fashion. The following cascades are available; select the appropriate one for your specific patient situation.

-CDCOM / Celiac Disease Comprehensive Cascade: complete testing including HLA DQ

-CDSP / Celiac Disease Serology Cascade: complete testing excluding HLA DQ

-CDGF / Celiac Disease Gluten-Free Cascade: for patients already adhering to a gluten-free diet

To order individual tests, see Celiac Disease Diagnostic Testing Algorithm in Special Instructions.



Specimen Required


Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.6 mL

Collection Instructions:

1. Serum gel tubes should be centrifuged within 2 hours of collection.

2. Red-top tubes should be centrifuged and aliquoted within 2 hours of collection.


Useful For

Detection or monitoring of monoclonal gammopathies and immune deficiencies

Method Name

Turbidimetric

Reporting Name

Immunoglobulin A (IgA), S

Specimen Type

Serum

Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Refrigerated (preferred) 240 days
  Ambient  240 days
  Frozen  240 days

Reject Due To

Gross hemolysis OK
Gross lipemia Reject
Gross icterus OK

Reference Values

70-400 mg/dL

Performing Laboratory

MCHS- La Crosse Lab

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

82784

LOINC Code Information

Test ID Test Order Name Order LOINC Value
IGA3 Immunoglobulin A (IgA), S 2458-8

 

Result ID Test Result Name Result LOINC Value
IGA3 Immunoglobulin A (IgA), S 2458-8

Day(s) Performed

Monday through Sunday

Report Available

1 to 2 days