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Test Code LAGGT Granulocyte Antibodies, Serum

Reporting Name

Granulocyte Ab, S

Useful For

Work-up of individuals having febrile, nonhemolytic transfusion reactions


Detection of individuals with autoimmune neutropenia


This test is not useful for the diagnosis of neutropenia caused by marrow suppression by drugs or tumors.

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum Red

Specimen Required

Collection Container/Tube: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 1.5 mL

Collection Instructions: Centrifuge and aliquot serum into a plastic vial.

Additional Information: Only pretransfusion reaction specimen is acceptable.

Specimen Minimum Volume

0.3 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Red Refrigerated (preferred) 30 days
  Frozen  365 days
  Ambient  7 days

Reference Values

Not applicable

Day(s) Performed

Tuesday, Wednesday, Friday

Test Classification

This test was developed, and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
LAGGT Granulocyte Ab, S 35279-9


Result ID Test Result Name Result LOINC Value
LAGG Granulocyte Ab, S 35279-9

Report Available

7 to 15 days

Method Name

Indirect Immunofluorescence